Datasheet

179
Release Notes for Cisco IOS Release 12.1E on the Catalyst 6500 and Cisco 7600 Supervisor Engine and MSFC
OL-2310-11
Caveats
• Receiving CDP packets with a host name that is 256 or more characters long might cause a memory
leak in the CDP process. This problem is resolved in Release 12.1(22)E1. (CSCin67568)
Resolved General Caveats in Release 12.1(22)E
• Certain release trains of Cisco Internetwork Operating System (IOS), when configured to use the
Cisco IOS Secure Shell (SSH) server in combination with Terminal Access Controller Access
Control System Plus (TACACS+) as a means to perform remote management tasks on Cisco IOS
devices, may contain two vulnerabilities that can potentially cause Cisco IOS devices to exhaust
resources and reload. Repeated exploitation of these vulnerabilities can result in a Denial of Service
(DoS) condition. Use of SSH with Remote Authentication Dial In User Service (RADIUS) is not
affected by these vulnerabilities.
Cisco has made free software available to address these vulnerabilities for all affected customers.
There are workarounds available to mitigate the effects of the vulnerability (see the “Workarounds”
section of the full advisory for details.)
This advisory will be posted at
http://www.cisco.com/warp/public/707/cisco-sa-20050406-ssh.shtml.
This problem is resolved in Release 12.1(22)E. (CSCed65778)
• A reload might occur if one process is writing to NVRAM and another process is reading from
NVRAM and the read fails. This problem is resolved in Release 12.1(22)E. (CSCec63011)
• In topologies with VLAN interfaces configured as intermediate multicast router connections,
Protocol Independent Multicast (PIM) register and PIM register stop messages might loop between
the intermediate routers until the TTL count expires. This problem is resolved in Release 12.1(22)E.
(CSCed87886)
• A group of 8 ports on a WS-X6548-GE-TX switching module might stop forwarding traffic. This
problem is resolved in Release 12.1(22)E. (CSCed68821)
• With server load balancing (SLB) configured on a Supervisor Engine 1 and an MSFC1, you might
see INPUTQ messages and interfaces might stop passing traffic. This problem is resolved in
Release 12.1(22)E. (CSCed49443)
• With high traffic levels and when the reverse forwarding path (RPF) towards the rendezvous point
and the multicast source are different, partially hardware-switched multicast flows might not be
forwarded correctly. This problem is resolved in Release 12.1(22)E. (CSCec80654)
• After “MALLOCFAIL” messages and tracebacks, a reload might occur. This problem is resolved in
Release 12.1(22)E. (CSCec71297)
• With the service compress-config command or the boot config command in the configuration, a
reload because of a bus error and stack overflow or stack corruption might occur if the configuration
is larger than the NVRAM size and you enter the show config command simultaneously with the
write terminal or show running-config command. This problem is resolved in Release 12.1(22)E.
(CSCed45942)
• In releases where caveat CSCdz27200 is resolved, a reload might occur when you append a file
whose size is not a multiple of 512 bytes to an Advanced Technology Attachment (ATA) flash card
(for example, disk0). For example, this situation may occur when you enter the show
command_name | tee /append url privileged EXEC command. This problem is resolved in
Release 12.1(22)E. (CSCin57765)
• In releases where caveat CSCdz27200 is resolved, files copied to an ATA disk might be corrupt. This
problem is resolved in Release 12.1(22)E. (CSCed44319)
• The DSCP value is incorrectly set to zero in NBAR traffic. This problem is resolved in
Release 12.1(22)E. (CSCec49042)