
484
Cross-Platform Release Notes for Cisco IOS Release 12.0S
OL-1617-14 Rev. Q0
Caveats
Resolved Caveats—Cisco IOS Release 12.0(32)S14
!--- Create a Policy-Map that will be applied to the
!--- Control-Plane of the device.
!--- NOTE: See section "4. Tuning the CoPP Policy" of
!--- http://www.cisco.com/web/about/security/intelligence/coppwp_gs.html#5
!--- for more information on choosing the most
!--- appropriate traffic rates
policy-map rate-udp-traffic
class rate-udp-class
police 10000 1500 1500 conform-action transmit
exceed-action drop violate-action drop
!--- Apply the Policy-Map to the
!--- Control-Plane of the device
control-plane
service-policy input drop-udp-traffic
Additional information on the configuration and use of the CoPP feature can be found in the
documents, “Control Plane Policing Implementation Best Practices” and “Cisco IOS Software
Releases 12.2 S—Control Plane Policing” at the following links:
http://www.cisco.com/web/about/security/intelligence/coppwp_gs.html and
http://www.cisco.com/en/US/docs/ios/12_3t/12_3t4/feature/guide/gtrtlimt.html
• CSCsz45567
A device running Cisco IOS Software, Cisco IOS XE Software, or Cisco IOS XR Software is
vulnerable to a remote denial of service condition if it is configured for Multiprotocol Label
Switching (MPLS) and has support for Label Distribution Protocol (LDP).
A crafted LDP UDP packet can cause an affected device running Cisco IOS Software or
Cisco IOS XE Software to reload. On devices running affected versions of Cisco IOS XR Software,
such packets can cause the device to restart the mpls_ldp process.
A system is vulnerable if configured with either LDP or Tag Distribution Protocol (TDP).
Cisco has released free software updates that address this vulnerability.
Workarounds that mitigate this vulnerability are available.
This advisory is posted at:
http://www.cisco.com/warp/public/707/cisco-sa-20100324-ldp.shtml
Resolved Caveats—Cisco IOS Release 12.0(32)S14
Cisco IOS Release 12.0(32)S14 is a rebuild of Cisco IOS Release 12.0(32)S. The caveats listed in this
section are resolved in Cisco IOS Release 12.0(32)S14 but may be open in previous Cisco IOS releases.
This section describes only severity 1, severity 2, and select severity 3 caveats.
Kommentare zu diesen Handbüchern