Cisco Cisco IOS Software Release 12.4(4)T
1183
Caveats for Cisco IOS Release 12.4T
OL-8003-09 Rev. Z0
Resolved Caveats—Cisco IOS Release 12.4(6)T10
This advisory is posted at
.
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CSCsk40676
Symptoms: The inside interface of a Cisco router that is running EZVPN may become unresponsive
when sending ICMP messages from a remote VPN client connection.
when sending ICMP messages from a remote VPN client connection.
Conditions: This symptom is observed when LZS compression is used on a Windows Vista client.
Workaround: Disable LZS compression.
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CSCsk42759
Multiple vulnerabilities exist in the Session Initiation Protocol (SIP) implementation in Cisco IOS
that can be exploited remotely to trigger a memory leak or to cause a reload of the Cisco IOS device.
that can be exploited remotely to trigger a memory leak or to cause a reload of the Cisco IOS device.
Cisco has released free software updates that address these vulnerabilities. Fixed Cisco IOS
software listed in the Software Versions and Fixes section contains fixes for all vulnerabilities
addressed in this advisory.
software listed in the Software Versions and Fixes section contains fixes for all vulnerabilities
addressed in this advisory.
There are no workarounds available to mitigate the effects of any of the vulnerabilities apart from
disabling the protocol or feature itself, if administrators do not require the Cisco IOS device to
provide voice over IP services.
disabling the protocol or feature itself, if administrators do not require the Cisco IOS device to
provide voice over IP services.
This advisory is posted at
.
•
CSCsl62609
Multiple vulnerabilities exist in the Session Initiation Protocol (SIP) implementation in Cisco IOS
that can be exploited remotely to trigger a memory leak or to cause a reload of the Cisco IOS device.
that can be exploited remotely to trigger a memory leak or to cause a reload of the Cisco IOS device.
Cisco has released free software updates that address these vulnerabilities. Fixed Cisco IOS
software listed in the Software Versions and Fixes section contains fixes for all vulnerabilities
addressed in this advisory.
software listed in the Software Versions and Fixes section contains fixes for all vulnerabilities
addressed in this advisory.
There are no workarounds available to mitigate the effects of any of the vulnerabilities apart from
disabling the protocol or feature itself, if administrators do not require the Cisco IOS device to
provide voice over IP services.
disabling the protocol or feature itself, if administrators do not require the Cisco IOS device to
provide voice over IP services.
This advisory is posted at
.
Resolved Caveats—Cisco IOS Release 12.4(6)T10
Cisco IOS Release 12.4(6)T10 is a rebuild release for Cisco IOS Release 12.4(6)T. The caveats in this
section are resolved in Cisco IOS Release 12.4(6)T10 but may be open in previous Cisco IOS releases.
section are resolved in Cisco IOS Release 12.4(6)T10 but may be open in previous Cisco IOS releases.
The following information is provided for each caveat:
•
Symptoms—A description of what is observed when the caveat occurs.
•
Conditions—The conditions under which the caveat has been known to occur.
•
Workaround—Solutions, if available, to counteract the caveat.
Basic System Services
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CSCek50783
Symptoms: “Enqueue to process level” message is seen in logs.
Conditions: This symptom has been observed in Cisco IOS Release 12.4T and 12.4 (4)XD2. No
debugs are enabled.
debugs are enabled.