Cisco Cisco IOS Software Release 12.2
192
Caveats for Cisco IOS Release 12.2
OL-3513-16 Rev. G0
Resolved Caveats—Cisco IOS Release 12.2(17f)
Conditions: This symptom is observed when an MLP link attempts to reestablish itself after it is
terminated on a Cisco 827.
terminated on a Cisco 827.
Workaround: There is no workaround.
Resolved Caveats—Cisco IOS Release 12.2(17f)
Cisco IOS Release 12.2(17f) is a rebuild release for Cisco IOS Release 12.2(17). The caveats in this
section are resolved in Cisco IOS Release 12.2(17f) but may be open in previous Cisco IOS releases.
section are resolved in Cisco IOS Release 12.2(17f) 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.
Miscellaneous
•
CSCei61732
Cisco IOS may permit arbitrary code execution after exploitation of a heap-based buffer overflow
vulnerability. Cisco has included additional integrity checks in its software, as further described
below, that are intended to reduce the likelihood of arbitrary code execution.
vulnerability. Cisco has included additional integrity checks in its software, as further described
below, that are intended to reduce the likelihood of arbitrary code execution.
Cisco has made free software available that includes the additional integrity checks for affected
customers.
customers.
This advisory is posted at
•
CSCei76358
Through normal software maintenance processes, Cisco is removing deprecated functionality. These
changes have no impact on system operation or feature availability.
changes have no impact on system operation or feature availability.
Resolved Caveats—Cisco IOS Release 12.2(17e)
Cisco IOS Release 12.2(17e) is a rebuild release for Cisco IOS Release 12.2(17). The caveats in this
section are resolved in Cisco IOS Release 12.2(17e) but may be open in previous Cisco IOS releases.
section are resolved in Cisco IOS Release 12.2(17e) 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
•
CSCef46191
Symptoms: A specifically crafted Transmission Control Protocol (TCP) connection to a telnet or
reverse telnet port of a Cisco device running Internetwork Operating System (IOS) may block
further telnet, reverse telnet, Remote Shell (RSH), Secure Shell (SSH), and in some cases Hypertext
reverse telnet port of a Cisco device running Internetwork Operating System (IOS) may block
further telnet, reverse telnet, Remote Shell (RSH), Secure Shell (SSH), and in some cases Hypertext