[AusNOG] Cisco Security Advisory: Cisco IOS Software H.323 Denial of Service Vulnerabilities
Cisco Systems Product Security Incident Response Team
psirt at cisco.com
Thu Sep 23 02:00:00 EST 2010
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Cisco Security Advisory: Cisco IOS Software H.323 Denial of Service
Vulnerabilities
Advisory ID: cisco-sa-20100922-h323
http://www.cisco.com/warp/public/707/cisco-sa-20100922-h323.shtml
Revision 1.0
For Public Release 2010 September 22 1600 UTC (GMT)
- ---------------------------------------------------------------------
Summary
=======
The H.323 implementation in Cisco IOS Software contains two
vulnerabilities that may be exploited remotely to cause a denial of
service (DoS) condition on a device that is running a vulnerable
version of Cisco IOS Software.
Cisco has released free software updates that address these
vulnerabilities. There are no workarounds to mitigate these
vulnerabilities other than disabling H.323 on the vulnerable device.
This advisory is posted at
http://www.cisco.com/warp/public/707/cisco-sa-20100922-h323.shtml
Note: The September 22, 2010, Cisco IOS Software Security Advisory
bundled publication includes six Cisco Security Advisories. Five of
the advisories address vulnerabilities in Cisco IOS Software, and one
advisory addresses vulnerabilities in Cisco Unified Communications
Manager. Each advisory lists the releases that correct the
vulnerability or vulnerabilities detailed in the advisory. The table
at the following URL lists releases that correct all Cisco IOS
Software vulnerabilities that have been published on September 22,
2010, or earlier:
http://www.cisco.com/warp/public/707/cisco-sa-20100922-bundle.shtml
Individual publication links are in "Cisco Event Response: Semiannual
Cisco IOS Software Security Advisory Bundled Publication" at the
following link:
http://www.cisco.com/web/about/security/intelligence/Cisco_ERP_sep10.html
Affected Products
=================
These vulnerabilities only affect devices that are running Cisco IOS
Software with H.323 voice services enabled.
Vulnerable Products
+------------------
Cisco devices that are running affected Cisco IOS Software versions
that are configured to process H.323 messages are affected by these
vulnerabilities. H.323 is not enabled by default.
To determine if the Cisco IOS Software device is running H.323
services, issue the show process cpu | include H323 command, as shown
in this example:
Router# show process cpu | include H323
249 16000 3 5333 0.00% 0.00% 0.00% 0 CCH323_CT
250 0 1 0 0.00% 0.00% 0.00% 0 CCH323_DNS
Router#
In the previous example the processes CCH323_CT and CCH323_DNS are
running on the device; therefore, the device is listening to H.323
messages. The device is vulnerable if any of these processes (or
similar) are active.
Note: Creating a dial peer by issuing the dial-peer voice command
will start the H.323 processes, which causes the Cisco IOS device to
process H.323 messages.
To determine the Cisco IOS Software release that is running on a
Cisco product, administrators can log in to the device and issue the
show version command to display the system banner. The system banner
confirms that the device is running Cisco IOS Software by displaying
text similar to "Cisco Internetwork Operating System Software" or
"Cisco IOS Software." The image name displays in parentheses,
followed by "Version" and the Cisco IOS Software release name. Other
Cisco devices do not have the show version command or may provide
different output.
The following example identifies a Cisco product that is running
Cisco IOS Software Release 12.3(26) with an installed image name of
C2500-IS-L:
Router# show version
Cisco Internetwork Operating System Software
IOS (tm) 2500 Software (C2500-IS-L), Version 12.3(26), RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2008 by cisco Systems, Inc.
Compiled Mon 17-Mar-08 14:39 by dchih
!--- output truncated
The following example identifies a Cisco product that is running
Cisco IOS Software Release 12.4(20)T with an installed image name of
C1841-ADVENTERPRISEK9-M:
Router# show version
Cisco IOS Software, 1841 Software (C1841-ADVENTERPRISEK9-M), Version 12.4(20)T,
RELEASE SOFTWARE (fc3)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2008 by Cisco Systems, Inc.
Compiled Thu 10-Jul-08 20:25 by prod_rel_team
!--- output truncated
Additional information about Cisco IOS Software release naming
conventions is available in "White Paper: Cisco IOS Reference Guide"
at the following link:
http://www.cisco.com/web/about/security/intelligence/ios-ref.html
Products Confirmed Not Vulnerable
+--------------------------------
Cisco IOS XR Software is not affected by these vulnerabilities.
No other Cisco products are currently known to be affected by these
vulnerabilities.
Details
=======
H.323 is the International Telecommunication Union (ITU) standard for
real-time multimedia communications and conferencing over
packet-based (IP) networks. A subset of the H.323 standard is
H.225.0, a standard that is used for call signaling protocols and
media stream packetization over IP networks.
The H.323 implementation in Cisco IOS Software contains two DoS
vulnerabilities. An attacker can exploit these vulnerabilities
remotely by sending crafted H.323 packets to an affected device that
is running Cisco IOS Software. A TCP three-way handshake is required
to exploit these vulnerabilities.
These vulnerabilities are documented in Cisco Bug IDs CSCtc73759 (
registered customers only) and CSCtd33567 ( registered customers
only) , and have been assigned Common Vulnerabilities and Exposures
(CVE) IDs CVE-2010-2828 and CVE-2010-2829, respectively.
Vulnerability Scoring Details
=============================
Cisco has provided scores for the vulnerabilities in this advisory
based on the Common Vulnerability Scoring System (CVSS). The CVSS
scoring in this Security Advisory is done in accordance with CVSS
version 2.0.
CVSS is a standards-based scoring method that conveys vulnerability
severity and helps determine urgency and priority of response.
Cisco has provided a base and temporal score. Customers can then
compute environmental scores to assist in determining the impact of
the vulnerability in individual networks.
Cisco has provided an FAQ to answer additional questions regarding
CVSS at
http://www.cisco.com/web/about/security/intelligence/cvss-qandas.html
Cisco has also provided a CVSS calculator to help compute the
environmental impact for individual networks at
http://intellishield.cisco.com/security/alertmanager/cvss
CSCtc73759 - Device crashing upon receipt of specific traffic
CVSS Base Score - 7.8
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Complete
CVSS Temporal Score - 6.4
Exploitability Functional
Remediation Level Official Fix
Report Confidence Confirmed
CSCtd33567 - Traceback seen when receiving crafted H.323 packets
CVSS Base Score - 7.8
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Complete
CVSS Temporal Score - 6.4
Exploitability Functional
Remediation Level Official Fix
Report Confidence Confirmed
Impact
======
Successful exploitation of the vulnerabilities described in this
advisory may cause the affected device to reload. Theses
vulnerabilities could be exploited repeatedly to cause an extended
DoS condition.
Software Versions and Fixes
===========================
When considering software upgrades, also consult
http://www.cisco.com/go/psirt and any subsequent advisories to
determine exposure and a complete upgrade solution.
In all cases, customers should exercise caution to be certain the
devices to be upgraded contain sufficient memory and that current
hardware and software configurations will continue to be supported
properly by the new release. If the information is not clear, contact
the Cisco Technical Assistance Center (TAC) or your contracted
maintenance provider for assistance.
Each row of the following Cisco IOS Software table corresponds to a
Cisco IOS Software train. If a particular train is vulnerable, the
earliest releases that contain the fix are listed in the First Fixed
Release For This Advisory column. The First Fixed Release for All
Advisories in the September 2010 Bundle Publication column lists the
earliest possible releases that correct all the published
vulnerabilities in the Cisco IOS Software Security Advisory bundled
publication. Cisco recommends upgrading to the latest available
release, where possible.
+--------------------------------------------------------------------+
| Major | Availability of Repaired Releases |
| Release | |
|------------+-------------------------------------------------------|
| Affected | | First Fixed Release for |
| 12.0-Based | First Fixed Release for | All Advisories in the |
| Releases | This Advisory | September 2010 Bundle |
| | | Publication |
|--------------------------------------------------------------------|
| There are no affected 12.0-based releases |
|--------------------------------------------------------------------|
| Affected | | First Fixed Release for |
| 12.1-Based | First Fixed Release for | All Advisories in the |
| Releases | This Advisory | September 2010 Bundle |
| | | Publication |
|------------+---------------------------+---------------------------|
| | | Vulnerable; first fixed |
| | | in 12.4T |
| 12.1 | Not Vulnerable | |
| | | Releases up to and |
| | | including 12.1(4b) are |
| | | not vulnerable. |
|------------+---------------------------+---------------------------|
| 12.1AA | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.1AX | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.1AY | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.1AZ | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.1CX | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.1DA | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.1DB | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.1DC | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.1E | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.1EA | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.1EB | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.1EC | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.1EO | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.1EU | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.1EV | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.1EW | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.1EX | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.1EY | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.1EZ | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.1GA | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.1GB | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
| 12.1T | | |
| | Releases up to and | Releases up to and |
| | including 12.1(3a)T8 are | including 12.1(3a)T8 are |
| | not vulnerable. | not vulnerable. |
|------------+---------------------------+---------------------------|
| 12.1XA | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.1XB | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.1XC | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.1XD | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.1XE | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.1XF | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.1XG | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.1XH | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.1XI | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.1XJ | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.1XL | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.1XM | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.1XP | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.1XQ | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.1XR | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
| 12.1XS | | |
| | Releases up to and | Releases up to and |
| | including 12.1(3)XS are | including 12.1(3)XS are |
| | not vulnerable. | not vulnerable. |
|------------+---------------------------+---------------------------|
| | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
| 12.1XT | | |
| | Releases up to and | Releases up to and |
| | including 12.1(2)XT2 are | including 12.1(2)XT2 are |
| | not vulnerable. | not vulnerable. |
|------------+---------------------------+---------------------------|
| 12.1XU | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.1XV | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.1XW | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.1XX | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
| 12.1XY | | |
| | Releases up to and | Releases up to and |
| | including 12.1(4)XY are | including 12.1(4)XY are |
| | not vulnerable. | not vulnerable. |
|------------+---------------------------+---------------------------|
| 12.1XZ | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.1YA | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.1YB | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.1YC | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.1YD | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| | Releases prior to 12.1(5) | Releases prior to 12.1(5) |
| | YE6 are vulnerable, | YE6 are vulnerable, |
| 12.1YE | release 12.1(5)YE6 and | release 12.1(5)YE6 and |
| | later are not vulnerable; | later are not vulnerable; |
| | first fixed in 12.4 | first fixed in 12.4T |
|------------+---------------------------+---------------------------|
| 12.1YF | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.1YH | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| | Vulnerable; Contact your | Vulnerable; Contact your |
| | support organization per | support organization per |
| 12.1YI | the instructions in | the instructions in |
| | Obtaining Fixed Software | Obtaining Fixed Software |
| | section of this advisory | section of this advisory |
|------------+---------------------------+---------------------------|
| 12.1YJ | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| Affected | | First Fixed Release for |
| 12.2-Based | First Fixed Release for | All Advisories in the |
| Releases | This Advisory | September 2010 Bundle |
| | | Publication |
|------------+---------------------------+---------------------------|
| 12.2 | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
| 12.2B | | |
| | Releases up to and | Releases up to and |
| | including 12.2(2)B7 are | including 12.2(2)B7 are |
| | not vulnerable. | not vulnerable. |
|------------+---------------------------+---------------------------|
| 12.2BC | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.2BW | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.2SB | in 12.2SB |
| 12.2BX | | |
| | Releases up to and | Releases up to and |
| | including 12.2(15)BX are | including 12.2(15)BX are |
| | not vulnerable. | not vulnerable. |
|------------+---------------------------+---------------------------|
| | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
| 12.2BY | | |
| | Releases up to and | Releases up to and |
| | including 12.2(2)BY3 are | including 12.2(2)BY3 are |
| | not vulnerable. | not vulnerable. |
|------------+---------------------------+---------------------------|
| 12.2BZ | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.2CX | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.2CY | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| | Vulnerable; Contact your | Vulnerable; Contact your |
| | support organization per | support organization per |
| 12.2CZ | the instructions in | the instructions in |
| | Obtaining Fixed Software | Obtaining Fixed Software |
| | section of this advisory | section of this advisory |
|------------+---------------------------+---------------------------|
| 12.2DA | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.2DD | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.2DX | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.2EW | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.2EWA | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.2EX | Vulnerable; migrate to | Not Vulnerable |
| | any release in 12.2SE | |
|------------+---------------------------+---------------------------|
| 12.2EY | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.2EZ | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.2FX | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.2FY | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.2FZ | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| | | Vulnerable; Contact your |
| | | support organization per |
| 12.2IRA | Not Vulnerable | the instructions in |
| | | Obtaining Fixed Software |
| | | section of this advisory |
|------------+---------------------------+---------------------------|
| | | Vulnerable; Contact your |
| | | support organization per |
| 12.2IRB | Not Vulnerable | the instructions in |
| | | Obtaining Fixed Software |
| | | section of this advisory |
|------------+---------------------------+---------------------------|
| | | Vulnerable; Contact your |
| | | support organization per |
| 12.2IRC | Not Vulnerable | the instructions in |
| | | Obtaining Fixed Software |
| | | section of this advisory |
|------------+---------------------------+---------------------------|
| | | Vulnerable; Contact your |
| | | support organization per |
| 12.2IRD | Not Vulnerable | the instructions in |
| | | Obtaining Fixed Software |
| | | section of this advisory |
|------------+---------------------------+---------------------------|
| | | Vulnerable; Contact your |
| | | support organization per |
| 12.2IRE | Not Vulnerable | the instructions in |
| | | Obtaining Fixed Software |
| | | section of this advisory |
|------------+---------------------------+---------------------------|
| | | Vulnerable; Contact your |
| | | support organization per |
| 12.2IXA | Not Vulnerable | the instructions in |
| | | Obtaining Fixed Software |
| | | section of this advisory |
|------------+---------------------------+---------------------------|
| | | Vulnerable; Contact your |
| | | support organization per |
| 12.2IXB | Not Vulnerable | the instructions in |
| | | Obtaining Fixed Software |
| | | section of this advisory |
|------------+---------------------------+---------------------------|
| | | Vulnerable; Contact your |
| | | support organization per |
| 12.2IXC | Not Vulnerable | the instructions in |
| | | Obtaining Fixed Software |
| | | section of this advisory |
|------------+---------------------------+---------------------------|
| | | Vulnerable; Contact your |
| | | support organization per |
| 12.2IXD | Not Vulnerable | the instructions in |
| | | Obtaining Fixed Software |
| | | section of this advisory |
|------------+---------------------------+---------------------------|
| | | Vulnerable; Contact your |
| | | support organization per |
| 12.2IXE | Not Vulnerable | the instructions in |
| | | Obtaining Fixed Software |
| | | section of this advisory |
|------------+---------------------------+---------------------------|
| | | Vulnerable; Contact your |
| | | support organization per |
| 12.2IXF | Not Vulnerable | the instructions in |
| | | Obtaining Fixed Software |
| | | section of this advisory |
|------------+---------------------------+---------------------------|
| | | Vulnerable; Contact your |
| | | support organization per |
| 12.2IXG | Not Vulnerable | the instructions in |
| | | Obtaining Fixed Software |
| | | section of this advisory |
|------------+---------------------------+---------------------------|
| | | Vulnerable; Contact your |
| | | support organization per |
| 12.2IXH | Not Vulnerable | the instructions in |
| | | Obtaining Fixed Software |
| | | section of this advisory |
|------------+---------------------------+---------------------------|
| 12.2JA | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.2JK | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.2MB | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| | Releases up to and | Releases up to and |
| | including 12.2(15)MC1 are | including 12.2(15)MC1 are |
| | not vulnerable. | not vulnerable. Releases |
| 12.2MC | | 12.2(15)MC2b and later |
| | Releases 12.2(15)MC2b and | are not vulnerable; first |
| | later are not vulnerable; | fixed in 12.4T |
| | first fixed in 12.4 | |
|------------+---------------------------+---------------------------|
| | | Vulnerable; Contact your |
| | | support organization per |
| 12.2MRA | Not Vulnerable | the instructions in |
| | | Obtaining Fixed Software |
| | | section of this advisory |
|------------+---------------------------+---------------------------|
| 12.2MRB | Not Vulnerable | 12.2(33)MRB2 |
|------------+---------------------------+---------------------------|
| | Releases prior to 12.2 | Releases prior to 12.2 |
| 12.2S | (30)S are vulnerable, | (30)S are vulnerable, |
| | release 12.2(30)S and | release 12.2(30)S and |
| | later are not vulnerable | later are not vulnerable |
|------------+---------------------------+---------------------------|
| | 12.2(31)SB19 | 12.2(31)SB19 |
| | | |
| 12.2SB | Releases prior to 12.2 | Releases prior to 12.2 |
| | (33)SB5 are vulnerable, | (33)SB5 are vulnerable, |
| | release 12.2(33)SB5 and | release 12.2(33)SB5 and |
| | later are not vulnerable | later are not vulnerable |
|------------+---------------------------+---------------------------|
| 12.2SBC | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.2SB | in 12.2SB |
|------------+---------------------------+---------------------------|
| 12.2SCA | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.2SCB | in 12.2SCB |
|------------+---------------------------+---------------------------|
| | 12.2(33)SCB10 | |
| | | |
| 12.2SCB | 12.2(33)SCB9 | 12.2(33)SCB9 |
| | | |
| | 12.2(33)SCB8 | |
|------------+---------------------------+---------------------------|
| | 12.2(33)SCC5 | |
| 12.2SCC | | 12.2(33)SCC5 |
| | 12.2(33)SCC4 | |
|------------+---------------------------+---------------------------|
| | 12.2(33)SCD3 | |
| 12.2SCD | | 12.2(33)SCD3 |
| | 12.2(33)SCD4 | |
|------------+---------------------------+---------------------------|
| 12.2SE | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.2SEA | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.2SEB | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.2SEC | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.2SED | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.2SEE | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.2SEF | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.2SEG | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| | Releases prior to 12.2 | Releases prior to 12.2 |
| | (40)SG are vulnerable, | (40)SG are vulnerable, |
| 12.2SG | release 12.2(40)SG and | release 12.2(40)SG and |
| | later are not vulnerable; | later are not vulnerable; |
| | migrate to any release in | migrate to any release in |
| | 12.2SGA | 12.2SGA |
|------------+---------------------------+---------------------------|
| 12.2SGA | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.2SL | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.2SM | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.2SO | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.2SQ | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| | Releases prior to 12.2 | Releases prior to 12.2 |
| 12.2SRA | (33)SRA6 are vulnerable, | (33)SRA6 are vulnerable, |
| | release 12.2(33)SRA6 and | release 12.2(33)SRA6 and |
| | later are not vulnerable | later are not vulnerable |
|------------+---------------------------+---------------------------|
| | Releases prior to 12.2 | Releases prior to 12.2 |
| 12.2SRB | (33)SRB1 are vulnerable, | (33)SRB1 are vulnerable, |
| | release 12.2(33)SRB1 and | release 12.2(33)SRB1 and |
| | later are not vulnerable | later are not vulnerable |
|------------+---------------------------+---------------------------|
| 12.2SRC | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.2SRD | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.2SRE | Not Vulnerable | 12.2(33)SRE1 |
|------------+---------------------------+---------------------------|
| 12.2STE | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.2SU | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| | Releases prior to 12.2 | Releases prior to 12.2 |
| | (29b)SV1 are vulnerable, | (29b)SV1 are vulnerable, |
| 12.2SV | release 12.2(29b)SV1 and | release 12.2(29b)SV1 and |
| | later are not vulnerable; | later are not vulnerable; |
| | migrate to any release in | migrate to any release in |
| | 12.2SVD | 12.2SVD |
|------------+---------------------------+---------------------------|
| 12.2SVA | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.2SVC | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.2SVD | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.2SVE | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| | Releases up to and | Releases up to and |
| | including 12.2(21)SW1 are | including 12.2(21)SW1 are |
| | not vulnerable. | not vulnerable. Releases |
| 12.2SW | | 12.2(25)SW12 and later |
| | Releases 12.2(25)SW12 and | are not vulnerable; first |
| | later are not vulnerable; | fixed in 12.4T |
| | first fixed in 12.4T | |
|------------+---------------------------+---------------------------|
| | | Releases up to and |
| 12.2SX | Not Vulnerable | including 12.2(14)SX2 are |
| | | not vulnerable. |
|------------+---------------------------+---------------------------|
| | Releases prior to 12.2 | Vulnerable; Contact your |
| | (17b)SXA2 are vulnerable, | support organization per |
| 12.2SXA | release 12.2(17b)SXA2 and | the instructions in |
| | later are not vulnerable | Obtaining Fixed Software |
| | | section of this advisory |
|------------+---------------------------+---------------------------|
| | Releases prior to 12.2 | Vulnerable; Contact your |
| | (17d)SXB7 are vulnerable, | support organization per |
| 12.2SXB | release 12.2(17d)SXB7 and | the instructions in |
| | later are not vulnerable; | Obtaining Fixed Software |
| | migrate to any release in | section of this advisory |
| | 12.2SXE | |
|------------+---------------------------+---------------------------|
| | Releases prior to 12.2 | Vulnerable; Contact your |
| | (18)SXD2 are vulnerable, | support organization per |
| 12.2SXD | release 12.2(18)SXD2 and | the instructions in |
| | later are not vulnerable | Obtaining Fixed Software |
| | | section of this advisory |
|------------+---------------------------+---------------------------|
| | | Vulnerable; Contact your |
| | | support organization per |
| 12.2SXE | Not Vulnerable | the instructions in |
| | | Obtaining Fixed Software |
| | | section of this advisory |
|------------+---------------------------+---------------------------|
| | Only 12.2(18)SXF7 and | Releases prior to 12.2 |
| 12.2SXF | 12.2(18)SXF8 are | (18)SXF11 are vulnerable, |
| | vulnerable | release 12.2(18)SXF11 and |
| | | later are not vulnerable |
|------------+---------------------------+---------------------------|
| 12.2SXH | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.2SXI | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| | Vulnerable; Contact your | |
| | support organization per | |
| 12.2SY | the instructions in | Not Vulnerable |
| | Obtaining Fixed Software | |
| | section of this advisory | |
|------------+---------------------------+---------------------------|
| | Vulnerable; Contact your | Vulnerable; Contact your |
| | support organization per | support organization per |
| 12.2SZ | the instructions in | the instructions in |
| | Obtaining Fixed Software | Obtaining Fixed Software |
| | section of this advisory | section of this advisory |
|------------+---------------------------+---------------------------|
| 12.2T | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| | Vulnerable; Contact your | Vulnerable; Contact your |
| | support organization per | support organization per |
| 12.2TPC | the instructions in | the instructions in |
| | Obtaining Fixed Software | Obtaining Fixed Software |
| | section of this advisory | section of this advisory |
|------------+---------------------------+---------------------------|
| | Vulnerable; first fixed | |
| | in 12.4 | |
| 12.2XA | | Vulnerable; first fixed |
| | Releases up to and | in 12.4T |
| | including 12.2(1)XA are | |
| | not vulnerable. | |
|------------+---------------------------+---------------------------|
| 12.2XB | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.2XC | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.2XD | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.2XE | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.2XF | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.2XG | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.2XH | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.2XI | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.2XJ | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.2XK | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.2XL | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.2XM | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| | Releases prior to 12.2 | |
| | (33)XN1 are vulnerable, | Vulnerable; first fixed |
| 12.2XN | release 12.2(33)XN1 and | in 12.2SB |
| | later are not vulnerable; | |
| | first fixed in 12.2SB | |
|------------+---------------------------+---------------------------|
| 12.2XNA | Please see Cisco IOS-XE | Please see Cisco IOS-XE |
| | Software Availability | Software Availability |
|------------+---------------------------+---------------------------|
| 12.2XNB | Please see Cisco IOS-XE | Please see Cisco IOS-XE |
| | Software Availability | Software Availability |
|------------+---------------------------+---------------------------|
| 12.2XNC | Please see Cisco IOS-XE | Please see Cisco IOS-XE |
| | Software Availability | Software Availability |
|------------+---------------------------+---------------------------|
| 12.2XND | Please see Cisco IOS-XE | Please see Cisco IOS-XE |
| | Software Availability | Software Availability |
|------------+---------------------------+---------------------------|
| 12.2XNE | Please see Cisco IOS-XE | Please see Cisco IOS-XE |
| | Software Availability | Software Availability |
|------------+---------------------------+---------------------------|
| 12.2XNF | Please see Cisco IOS-XE | Please see Cisco IOS-XE |
| | Software Availability | Software Availability |
|------------+---------------------------+---------------------------|
| 12.2XO | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.2XQ | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.2XR | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.2XS | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.2XT | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.2XU | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.2XV | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.2XW | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.2YA | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| | Vulnerable; Contact your | Vulnerable; Contact your |
| | support organization per | support organization per |
| 12.2YB | the instructions in | the instructions in |
| | Obtaining Fixed Software | Obtaining Fixed Software |
| | section of this advisory | section of this advisory |
|------------+---------------------------+---------------------------|
| | Vulnerable; Contact your | Vulnerable; Contact your |
| | support organization per | support organization per |
| 12.2YC | the instructions in | the instructions in |
| | Obtaining Fixed Software | Obtaining Fixed Software |
| | section of this advisory | section of this advisory |
|------------+---------------------------+---------------------------|
| | Vulnerable; Contact your | Vulnerable; Contact your |
| | support organization per | support organization per |
| 12.2YD | the instructions in | the instructions in |
| | Obtaining Fixed Software | Obtaining Fixed Software |
| | section of this advisory | section of this advisory |
|------------+---------------------------+---------------------------|
| | Vulnerable; Contact your | Vulnerable; Contact your |
| | support organization per | support organization per |
| 12.2YE | the instructions in | the instructions in |
| | Obtaining Fixed Software | Obtaining Fixed Software |
| | section of this advisory | section of this advisory |
|------------+---------------------------+---------------------------|
| | Vulnerable; Contact your | Vulnerable; Contact your |
| | support organization per | support organization per |
| 12.2YF | the instructions in | the instructions in |
| | Obtaining Fixed Software | Obtaining Fixed Software |
| | section of this advisory | section of this advisory |
|------------+---------------------------+---------------------------|
| 12.2YG | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| | Vulnerable; Contact your | Vulnerable; Contact your |
| | support organization per | support organization per |
| 12.2YH | the instructions in | the instructions in |
| | Obtaining Fixed Software | Obtaining Fixed Software |
| | section of this advisory | section of this advisory |
|------------+---------------------------+---------------------------|
| | Vulnerable; Contact your | Vulnerable; Contact your |
| | support organization per | support organization per |
| 12.2YJ | the instructions in | the instructions in |
| | Obtaining Fixed Software | Obtaining Fixed Software |
| | section of this advisory | section of this advisory |
|------------+---------------------------+---------------------------|
| | Vulnerable; Contact your | Vulnerable; Contact your |
| | support organization per | support organization per |
| 12.2YK | the instructions in | the instructions in |
| | Obtaining Fixed Software | Obtaining Fixed Software |
| | section of this advisory | section of this advisory |
|------------+---------------------------+---------------------------|
| | Vulnerable; Contact your | Vulnerable; Contact your |
| | support organization per | support organization per |
| 12.2YL | the instructions in | the instructions in |
| | Obtaining Fixed Software | Obtaining Fixed Software |
| | section of this advisory | section of this advisory |
|------------+---------------------------+---------------------------|
| 12.2YM | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| | Vulnerable; Contact your | Vulnerable; Contact your |
| | support organization per | support organization per |
| 12.2YN | the instructions in | the instructions in |
| | Obtaining Fixed Software | Obtaining Fixed Software |
| | section of this advisory | section of this advisory |
|------------+---------------------------+---------------------------|
| | Vulnerable; Contact your | |
| | support organization per | |
| 12.2YO | the instructions in | Not Vulnerable |
| | Obtaining Fixed Software | |
| | section of this advisory | |
|------------+---------------------------+---------------------------|
| 12.2YP | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.2YQ | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.2YR | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.2YS | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| | Vulnerable; Contact your | Vulnerable; Contact your |
| | support organization per | support organization per |
| 12.2YT | the instructions in | the instructions in |
| | Obtaining Fixed Software | Obtaining Fixed Software |
| | section of this advisory | section of this advisory |
|------------+---------------------------+---------------------------|
| | Vulnerable; Contact your | Vulnerable; Contact your |
| | support organization per | support organization per |
| 12.2YU | the instructions in | the instructions in |
| | Obtaining Fixed Software | Obtaining Fixed Software |
| | section of this advisory | section of this advisory |
|------------+---------------------------+---------------------------|
| | Releases prior to 12.2 | Releases prior to 12.2 |
| 12.2YV | (11)YV1 are vulnerable, | (11)YV1 are vulnerable, |
| | release 12.2(11)YV1 and | release 12.2(11)YV1 and |
| | later are not vulnerable | later are not vulnerable |
|------------+---------------------------+---------------------------|
| | Vulnerable; Contact your | Vulnerable; Contact your |
| | support organization per | support organization per |
| 12.2YW | the instructions in | the instructions in |
| | Obtaining Fixed Software | Obtaining Fixed Software |
| | section of this advisory | section of this advisory |
|------------+---------------------------+---------------------------|
| | Vulnerable; Contact your | Vulnerable; Contact your |
| | support organization per | support organization per |
| 12.2YX | the instructions in | the instructions in |
| | Obtaining Fixed Software | Obtaining Fixed Software |
| | section of this advisory | section of this advisory |
|------------+---------------------------+---------------------------|
| | Vulnerable; Contact your | Vulnerable; Contact your |
| | support organization per | support organization per |
| 12.2YY | the instructions in | the instructions in |
| | Obtaining Fixed Software | Obtaining Fixed Software |
| | section of this advisory | section of this advisory |
|------------+---------------------------+---------------------------|
| | Vulnerable; Contact your | Vulnerable; Contact your |
| | support organization per | support organization per |
| 12.2YZ | the instructions in | the instructions in |
| | Obtaining Fixed Software | Obtaining Fixed Software |
| | section of this advisory | section of this advisory |
|------------+---------------------------+---------------------------|
| 12.2ZA | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| | Releases up to and | Releases up to and |
| 12.2ZB | including 12.2(8)ZB are | including 12.2(8)ZB are |
| | not vulnerable. | not vulnerable. |
|------------+---------------------------+---------------------------|
| | Vulnerable; Contact your | Vulnerable; Contact your |
| | support organization per | support organization per |
| 12.2ZC | the instructions in | the instructions in |
| | Obtaining Fixed Software | Obtaining Fixed Software |
| | section of this advisory | section of this advisory |
|------------+---------------------------+---------------------------|
| | Vulnerable; Contact your | Vulnerable; Contact your |
| | support organization per | support organization per |
| 12.2ZD | the instructions in | the instructions in |
| | Obtaining Fixed Software | Obtaining Fixed Software |
| | section of this advisory | section of this advisory |
|------------+---------------------------+---------------------------|
| 12.2ZE | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.2ZF | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.2ZG | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.2ZH | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| | Vulnerable; Contact your | Vulnerable; Contact your |
| | support organization per | support organization per |
| 12.2ZJ | the instructions in | the instructions in |
| | Obtaining Fixed Software | Obtaining Fixed Software |
| | section of this advisory | section of this advisory |
|------------+---------------------------+---------------------------|
| | Vulnerable; Contact your | Vulnerable; Contact your |
| | support organization per | support organization per |
| 12.2ZL | the instructions in | the instructions in |
| | Obtaining Fixed Software | Obtaining Fixed Software |
| | section of this advisory | section of this advisory |
|------------+---------------------------+---------------------------|
| | Vulnerable; Contact your | Vulnerable; Contact your |
| | support organization per | support organization per |
| 12.2ZP | the instructions in | the instructions in |
| | Obtaining Fixed Software | Obtaining Fixed Software |
| | section of this advisory | section of this advisory |
|------------+---------------------------+---------------------------|
| | Vulnerable; migrate to | Vulnerable; Contact your |
| | any release in 12.2SXH | support organization per |
| 12.2ZU | | the instructions in |
| | Releases up to and | Obtaining Fixed Software |
| | including 12.2(18)ZU are | section of this advisory |
| | not vulnerable. | |
|------------+---------------------------+---------------------------|
| 12.2ZX | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| | | Vulnerable; Contact your |
| | | support organization per |
| 12.2ZY | Not Vulnerable | the instructions in |
| | | Obtaining Fixed Software |
| | | section of this advisory |
|------------+---------------------------+---------------------------|
| | | Vulnerable; Contact your |
| | | support organization per |
| 12.2ZYA | Not Vulnerable | the instructions in |
| | | Obtaining Fixed Software |
| | | section of this advisory |
|------------+---------------------------+---------------------------|
| Affected | | First Fixed Release for |
| 12.3-Based | First Fixed Release for | All Advisories in the |
| Releases | This Advisory | September 2010 Bundle |
| | | Publication |
|------------+---------------------------+---------------------------|
| 12.3 | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.3B | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.3BC | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.3BW | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.3EU | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.3JA | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.3JEA | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.3JEB | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.3JEC | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.3JED | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| | Releases up to and | Releases up to and |
| | including 12.3(2)JK3 are | including 12.3(2)JK3 are |
| | not vulnerable. | not vulnerable. Releases |
| 12.3JK | | 12.3(8)JK1 and later are |
| | Releases 12.3(8)JK1 and | not vulnerable; first |
| | later are not vulnerable; | fixed in 12.4T |
| | first fixed in 12.4 | |
|------------+---------------------------+---------------------------|
| 12.3JL | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.3JX | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.3T | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| | | Vulnerable; Contact your |
| | Releases up to and | support organization per |
| 12.3TPC | including 12.3(4)TPC11a | the instructions in |
| | are not vulnerable. | Obtaining Fixed Software |
| | | section of this advisory |
|------------+---------------------------+---------------------------|
| 12.3VA | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4T | in 12.4T |
|------------+---------------------------+---------------------------|
| | Releases prior to 12.3(2) | |
| | XA7 are vulnerable, | Vulnerable; first fixed |
| 12.3XA | release 12.3(2)XA7 and | in 12.4T |
| | later are not vulnerable; | |
| | first fixed in 12.4 | |
|------------+---------------------------+---------------------------|
| | Vulnerable; Contact your | Vulnerable; Contact your |
| | support organization per | support organization per |
| 12.3XB | the instructions in | the instructions in |
| | Obtaining Fixed Software | Obtaining Fixed Software |
| | section of this advisory | section of this advisory |
|------------+---------------------------+---------------------------|
| 12.3XC | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.3XD | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.3XE | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| | Vulnerable; Contact your | Vulnerable; Contact your |
| | support organization per | support organization per |
| 12.3XF | the instructions in | the instructions in |
| | Obtaining Fixed Software | Obtaining Fixed Software |
| | section of this advisory | section of this advisory |
|------------+---------------------------+---------------------------|
| 12.3XG | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| | Releases prior to 12.3(7) | Releases prior to 12.3(7) |
| | XI11 are vulnerable, | XI11 are vulnerable, |
| 12.3XI | release 12.3(7)XI11 and | release 12.3(7)XI11 and |
| | later are not vulnerable; | later are not vulnerable; |
| | first fixed in 12.2SB | first fixed in 12.2SB |
|------------+---------------------------+---------------------------|
| 12.3XJ | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.3YX | in 12.4XR |
|------------+---------------------------+---------------------------|
| 12.3XK | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.3XL | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4T | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.3XQ | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.3XR | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.3XS | Not Vulnerable | Vulnerable; first fixed |
| | | in 12.4T |
|------------+---------------------------+---------------------------|
| | Vulnerable; first fixed | |
| | in 12.4T | |
| 12.3XU | | Vulnerable; first fixed |
| | Releases up to and | in 12.4T |
| | including 12.3(8)XU1 are | |
| | not vulnerable. | |
|------------+---------------------------+---------------------------|
| 12.3XW | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.3YX | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.3XX | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.3XY | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.3XZ | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4 | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.3YA | Not Vulnerable | Vulnerable; first fixed |
| | | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.3YD | Not Vulnerable | Vulnerable; first fixed |
| | | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.3YF | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.3YX | in 12.4XR |
|------------+---------------------------+---------------------------|
| 12.3YG | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4T | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.3YH | Not Vulnerable | Vulnerable; first fixed |
| | | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.3YI | Not Vulnerable | Vulnerable; first fixed |
| | | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.3YJ | Not Vulnerable | Vulnerable; first fixed |
| | | in 12.4T |
|------------+---------------------------+---------------------------|
| | Releases prior to 12.3 | |
| | (11)YK3 are vulnerable, | Vulnerable; first fixed |
| 12.3YK | release 12.3(11)YK3 and | in 12.4T |
| | later are not vulnerable; | |
| | first fixed in 12.4T | |
|------------+---------------------------+---------------------------|
| 12.3YM | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4T | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.3YQ | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4T | in 12.4T |
|------------+---------------------------+---------------------------|
| | Vulnerable; first fixed | |
| | in 12.4T | |
| 12.3YS | | Vulnerable; first fixed |
| | Releases up to and | in 12.4T |
| | including 12.3(11)YS1 are | |
| | not vulnerable. | |
|------------+---------------------------+---------------------------|
| 12.3YT | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4T | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.3YU | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4T | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.3YX | 12.3(14)YX17 | Vulnerable; first fixed |
| | | in 12.4XR |
|------------+---------------------------+---------------------------|
| | Vulnerable; Contact your | Vulnerable; Contact your |
| | support organization per | support organization per |
| 12.3YZ | the instructions in | the instructions in |
| | Obtaining Fixed Software | Obtaining Fixed Software |
| | section of this advisory | section of this advisory |
|------------+---------------------------+---------------------------|
| 12.3ZA | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4T | in 12.4T |
|------------+---------------------------+---------------------------|
| Affected | | First Fixed Release for |
| 12.4-Based | First Fixed Release for | All Advisories in the |
| Releases | This Advisory | September 2010 Bundle |
| | | Publication |
|------------+---------------------------+---------------------------|
| 12.4 | 12.4(25d) | 12.4(25d) |
|------------+---------------------------+---------------------------|
| 12.4GC | 12.4(24)GC2 | 12.4(24)GC2 |
|------------+---------------------------+---------------------------|
| 12.4JA | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.4JDA | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.4JDC | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.4JDD | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.4JHA | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.4JHB | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.4JK | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.4JL | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.4JMA | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.4JMB | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.4JX | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.4JY | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| 12.4MD | Not Vulnerable | 12.4(24)MD2 |
|------------+---------------------------+---------------------------|
| 12.4MDA | 12.4(22)MDA4 | 12.4(22)MDA4 |
|------------+---------------------------+---------------------------|
| 12.4MR | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4MRA | in 12.4MRA |
|------------+---------------------------+---------------------------|
| 12.4MRA | 12.4(20)MRA1 | 12.4(20)MRA1 |
|------------+---------------------------+---------------------------|
| | Releases prior to 12.4 | |
| | (15)SW6 are vulnerable, | Vulnerable; first fixed |
| 12.4SW | release 12.4(15)SW6 and | in 12.4T |
| | later are not vulnerable; | |
| | first fixed in 12.4T | |
|------------+---------------------------+---------------------------|
| | 12.4(15)T14 | 12.4(15)T14 |
| | | |
| 12.4T | 12.4(20)T6 | 12.4(20)T6 |
| | | |
| | 12.4(24)T4 | 12.4(24)T4 |
|------------+---------------------------+---------------------------|
| 12.4XA | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4T | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.4XB | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4T | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.4XC | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4T | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.4XD | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4T | in 12.4T |
|------------+---------------------------+---------------------------|
| | Releases prior to 12.4(6) | Releases prior to 12.4(6) |
| | XE5 are vulnerable, | XE5 are vulnerable, |
| 12.4XE | release 12.4(6)XE5 and | release 12.4(6)XE5 and |
| | later are not vulnerable; | later are not vulnerable; |
| | first fixed in 12.4T | first fixed in 12.4T |
|------------+---------------------------+---------------------------|
| 12.4XF | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4T | in 12.4T |
|------------+---------------------------+---------------------------|
| | Releases prior to 12.4(9) | |
| | XG5 are vulnerable, | Vulnerable; first fixed |
| 12.4XG | release 12.4(9)XG5 and | in 12.4T |
| | later are not vulnerable; | |
| | first fixed in 12.4T | |
|------------+---------------------------+---------------------------|
| 12.4XJ | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4T | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.4XK | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4T | in 12.4T |
|------------+---------------------------+---------------------------|
| | Vulnerable; Contact your | Vulnerable; Contact your |
| | support organization per | support organization per |
| 12.4XL | the instructions in | the instructions in |
| | Obtaining Fixed Software | Obtaining Fixed Software |
| | section of this advisory | section of this advisory |
|------------+---------------------------+---------------------------|
| | Releases prior to 12.4 | |
| | (15)XM3 are vulnerable, | Vulnerable; first fixed |
| 12.4XM | release 12.4(15)XM3 and | in 12.4T |
| | later are not vulnerable; | |
| | first fixed in 12.4T | |
|------------+---------------------------+---------------------------|
| | Vulnerable; Contact your | Vulnerable; Contact your |
| | support organization per | support organization per |
| 12.4XN | the instructions in | the instructions in |
| | Obtaining Fixed Software | Obtaining Fixed Software |
| | section of this advisory | section of this advisory |
|------------+---------------------------+---------------------------|
| | Vulnerable; Contact your | Vulnerable; Contact your |
| | support organization per | support organization per |
| 12.4XP | the instructions in | the instructions in |
| | Obtaining Fixed Software | Obtaining Fixed Software |
| | section of this advisory | section of this advisory |
|------------+---------------------------+---------------------------|
| | Releases up to and | |
| | including 12.4(15)XQ are | |
| | not vulnerable. | 12.4(15)XQ6; Available on |
| 12.4XQ | | 22-SEP-10 |
| | Releases 12.4(15)XQ6 and | |
| | later are not vulnerable; | |
| | first fixed in 12.4T | |
|------------+---------------------------+---------------------------|
| | | 12.4(15)XR9 |
| 12.4XR | Not Vulnerable | |
| | | 12.4(22)XR7 |
|------------+---------------------------+---------------------------|
| 12.4XT | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4T | in 12.4T |
|------------+---------------------------+---------------------------|
| | Vulnerable; Contact your | Vulnerable; Contact your |
| | support organization per | support organization per |
| 12.4XV | the instructions in | the instructions in |
| | Obtaining Fixed Software | Obtaining Fixed Software |
| | section of this advisory | section of this advisory |
|------------+---------------------------+---------------------------|
| 12.4XW | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4T | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.4XY | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4T | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.4XZ | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4T | in 12.4T |
|------------+---------------------------+---------------------------|
| 12.4YA | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 12.4T | in 12.4T |
|------------+---------------------------+---------------------------|
| | Vulnerable; Contact your | Vulnerable; Contact your |
| | support organization per | support organization per |
| 12.4YB | the instructions in | the instructions in |
| | Obtaining Fixed Software | Obtaining Fixed Software |
| | section of this advisory | section of this advisory |
|------------+---------------------------+---------------------------|
| | Vulnerable; Contact your | Vulnerable; Contact your |
| | support organization per | support organization per |
| 12.4YD | the instructions in | the instructions in |
| | Obtaining Fixed Software | Obtaining Fixed Software |
| | section of this advisory | section of this advisory |
|------------+---------------------------+---------------------------|
| | Releases prior to 12.4 | |
| | (24)YE1 are vulnerable, | |
| 12.4YE | release 12.4(24)YE1 and | 12.4(24)YE1 |
| | later are not vulnerable; | |
| | first fixed in 12.4T | |
|------------+---------------------------+---------------------------|
| 12.4YG | 12.4(24)YG3 | 12.4(24)YG3 |
|------------+---------------------------+---------------------------|
| Affected | | First Fixed Release for |
| 15.0-Based | First Fixed Release for | All Advisories in the |
| Releases | This Advisory | September 2010 Bundle |
| | | Publication |
|------------+---------------------------+---------------------------|
| 15.0M | 15.0(1)M3 | 15.0(1)M3 |
|------------+---------------------------+---------------------------|
| | Cisco 7600 and 10000 | Cisco 7600 and 10000 |
| | Series routers: Not | Series routers: 15.0(1)S1 |
| | Vulnerable | (available early October |
| | | 2010) |
| 15.0S | Cisco ASR 1000 Series | |
| | routes: Please see Cisco | Cisco ASR 1000 Series |
| | IOS-XE Software | routes: Please see Cisco |
| | Availability | IOS-XE Software |
| | | Availability |
|------------+---------------------------+---------------------------|
| 15.0XA | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 15.1T | in 15.1T |
|------------+---------------------------+---------------------------|
| 15.0XO | Not Vulnerable | Not Vulnerable |
|------------+---------------------------+---------------------------|
| Affected | | First Fixed Release for |
| 15.1-Based | First Fixed Release for | All Advisories in the |
| Releases | This Advisory | September 2010 Bundle |
| | | Publication |
|------------+---------------------------+---------------------------|
| | 15.1(1)T1 | |
| 15.1T | | 15.1(2)T1 |
| | 15.1(2)T0a | |
|------------+---------------------------+---------------------------|
| 15.1XB | Vulnerable; first fixed | Vulnerable; first fixed |
| | in 15.1T | in 15.1T |
+--------------------------------------------------------------------+
Cisco IOS XE Software
+--------------------
+-------------------------------------------------------------------+
| Cisco IOS | First Fixed | First Fixed Release for All |
| XE | Release for This | Advisories in the September 2010 |
| Release | Advisory | Bundle Publication |
|-----------+------------------+------------------------------------|
| 2.1.x | Not Vulnerable | Not Vulnerable |
|-----------+------------------+------------------------------------|
| 2.2.x | Not Vulnerable | Not Vulnerable |
|-----------+------------------+------------------------------------|
| 2.3.x | Not Vulnerable | Not Vulnerable |
|-----------+------------------+------------------------------------|
| 2.4.x | Not Vulnerable | Not Vulnerable |
|-----------+------------------+------------------------------------|
| 2.5.x | 2.5.2 | Vulnerable; migrate to 2.6.2 or |
| | | later |
|-----------+------------------+------------------------------------|
| 2.6.x | 2.6.1 | 2.6.2 |
|-----------+------------------+------------------------------------|
| 3.1.xS | Not Vulnerable | Not Vulnerable |
+-------------------------------------------------------------------+
For mapping of Cisco IOS XE to Cisco IOS releases, please refer to
the Cisco IOS XE 2 and Cisco IOS XE 3S Release Notes.
Workarounds
===========
There are no workarounds to mitigate these vulnerabilities apart from
disabling H.323 if the Cisco IOS device does not require it. Applying
access lists on interfaces that should not accept H.323 traffic and
placing firewalls in strategic locations may greatly reduce exposure
until an upgrade can be performed.
Cisco provides Solution Reference Network Design (SRND) guides to
help design and deploy networking solutions, which can be found at
http://www.cisco.com/go/srnd Voice Security best practices are
covered in the Cisco Unified Communications SRND Based on Cisco
Unified Communications Manager 6.x at
http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/srnd/6x/security.html
To disable all H.323 call processing, administrators can issue the
call service stop forced command under the voice service voip mode,
as shown in this example:
voice service voip
h323
call service stop forced
Note: The call service stop forced command disables all H.323 call
processing.
Additional mitigations that can be deployed on Cisco devices within
the network are available in the companion document "Cisco Applied
Mitigation Bulletin: Identifying and Mitigating Exploitation of the
Multiple Vulnerabilities in Cisco Voice Products", which is available
at the following location:
http://www.cisco.com/warp/public/707/cisco-amb-20100922-voice.shtml
Obtaining Fixed Software
========================
Cisco has released free software updates that address these
vulnerabilities. Prior to deploying software, customers should
consult their maintenance provider or check the software for feature
set compatibility and known issues specific to their environment.
Customers may only install and expect support for the feature sets
they have purchased. By installing, downloading, accessing or
otherwise using such software upgrades, customers agree to be bound
by the terms of Cisco's software license terms found at
http://www.cisco.com/en/US/docs/general/warranty/English/EU1KEN_.html
or as otherwise set forth at Cisco.com Downloads at
http://www.cisco.com/public/sw-center/sw-usingswc.shtml
Do not contact psirt at cisco.com or security-alert at cisco.com for
software upgrades.
Customers with Service Contracts
+-------------------------------
Customers with contracts should obtain upgraded software through
their regular update channels. For most customers, this means that
upgrades should be obtained through the Software Center on Cisco's
worldwide website at http://www.cisco.com
Customers using Third Party Support Organizations
+------------------------------------------------
Customers whose Cisco products are provided or maintained through
prior or existing agreements with third-party support organizations,
such as Cisco Partners, authorized resellers, or service providers
should contact that support organization for guidance and assistance
with the appropriate course of action in regards to this advisory.
The effectiveness of any workaround or fix is dependent on specific
customer situations, such as product mix, network topology, traffic
behavior, and organizational mission. Due to the variety of affected
products and releases, customers should consult with their service
provider or support organization to ensure any applied workaround or
fix is the most appropriate for use in the intended network before it
is deployed.
Customers without Service Contracts
+----------------------------------
Customers who purchase direct from Cisco but do not hold a Cisco
service contract, and customers who purchase through third-party
vendors but are unsuccessful in obtaining fixed software through
their point of sale should acquire upgrades by contacting the Cisco
Technical Assistance Center (TAC). TAC contacts are as follows.
* +1 800 553 2447 (toll free from within North America)
* +1 408 526 7209 (toll call from anywhere in the world)
* e-mail: tac at cisco.com
Customers should have their product serial number available and be
prepared to give the URL of this notice as evidence of entitlement to
a free upgrade. Free upgrades for non-contract customers must be
requested through the TAC.
Refer to
http://www.cisco.com/en/US/support/tsd_cisco_worldwide_contacts.html
for additional TAC contact information, including localized telephone
numbers, and instructions and e-mail addresses for use in various
languages.
Exploitation and Public Announcements
=====================================
The Cisco PSIRT is not aware of any public announcements or malicious
use of the vulnerabilities described in this advisory.
These vulnerabilities were found during Cisco internal testing.
Status of this Notice: FINAL
============================
THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY
KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE
INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS
AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS
DOCUMENT AT ANY TIME.
A stand-alone copy or Paraphrase of the text of this document that
omits the distribution URL in the following section is an
uncontrolled copy, and may lack important information or contain
factual errors.
Distribution
============
This advisory is posted on Cisco's worldwide website at :
http://www.cisco.com/warp/public/707/cisco-sa-2010922-h323.shtml
In addition to worldwide web posting, a text version of this notice
is clear-signed with the Cisco PSIRT PGP key and is posted to the
following e-mail and Usenet news recipients.
* cust-security-announce at cisco.com
* first-bulletins at lists.first.org
* bugtraq at securityfocus.com
* vulnwatch at vulnwatch.org
* cisco at spot.colorado.edu
* cisco-nsp at puck.nether.net
* full-disclosure at lists.grok.org.uk
* comp.dcom.sys.cisco at newsgate.cisco.com
Future updates of this advisory, if any, will be placed on Cisco's
worldwide website, but may or may not be actively announced on
mailing lists or newsgroups. Users concerned about this problem are
encouraged to check the above URL for any updates.
Revision History
================
+-----------------------------------------+
| Revision | | Initial |
| 1.0 | 2010-September-22 | public |
| | | release. |
+-----------------------------------------+
Cisco Security Procedures
=========================
Complete information on reporting security vulnerabilities in Cisco
products, obtaining assistance with security incidents, and
registering to receive security information from Cisco, is available
on Cisco's worldwide website at
http://www.cisco.com/en/US/products/products_security_vulnerability_policy.html
This includes instructions for press inquiries regarding Cisco
security notices. All Cisco security advisories are available at
http://www.cisco.com/go/psirt
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