Cisco OL-4015-08 Bedienungsanleitung Seite 51

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Cross-Platform Release Notes for Cisco IOS Release 12.0S
OL-1617-14 Rev. Q0
Caveats
Resolved Caveats—Cisco IOS Release 12.0(33)S3
Workaround: There is no workaround.
CSCsk59579
Symptoms: The error message “eelc_add_a_port_to_root: port number not contiguous” is displayed,
and SPAs may eventually go out of service.
Conditions: This symptom is observed under a race condition due to a back-to- back removal and
addition of a member from the bundle.
Workaround: Shut down the member before removing it from the bundle.
CSCsk64158
Several features within Cisco IOS Software are affected by a crafted UDP packet vulnerability. If
any of the affected features are enabled, a successful attack will result in a blocked input queue on
the inbound interface. Only crafted UDP packets destined for the device could result in the interface
being blocked, transit traffic will not block the interface.
Cisco has released free software updates that address this vulnerability.
Workarounds that mitigate this vulnerability are available in the workarounds section of the
advisory.
This advisory is posted at the following link:
http://www.cisco.com/warp/public/707/cisco-sa-20090325-udp.shtml
CSCsk78809
Symptoms: If the traffic flow is re-routed a couple of times due to routing information changes under
a heavy load, the linecard suddenly stops forwarding traffic, and then even if the utilization is zero,
the linecard does not forward packets anymore.
Conditions: This problem is specific to SPA-1X10GE-L-V2 cards. It is associated with a failed
re-initialization of the SPA; that is, the problem can be reproduced by re-initializing the SPA while
traffic is artificially sent to the SPA rx side during the re-initialization. Traffic is IMIX with
giant/jumbo packets.
Workaround: There is no workaround. The proper operations can be recovered via “reload slot x.
CSCsl49628
Symptoms: When a VPN routing/forwarding (VRF) is deleted through the CLI, the VRF deletion
never completes on the standby RP, and the VRF cannot be reconfigured at a later time.
Conditions: This symptom is observed when BGP is enabled on the router.
Workaround: There is no workaround.
CSCsm27071
A vulnerability in the handling of IP sockets can cause devices to be vulnerable to a denial of service
attack when any of several features of Cisco IOS Software are enabled. A sequence of specially
crafted TCP/IP packets could cause any of the following results:
The configured feature may stop accepting new connections or sessions.
The memory of the device may be consumed.
The device may experience prolonged high CPU utilization.
The device may reload.
Cisco has released free software updates that address this vulnerability.
Workarounds that mitigate this vulnerability are available in the “workarounds” section of the
advisory.
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