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AUSCERT Security Bulletin
A vulnerability has been identified on Nexus 7000 series switches
7 June 2013
AusCERT Security Bulletin Summary
Product: Cisco Nexus 7000 series switches
Operating System: Cisco
Impact/Access: Denial of Service -- Remote/Unauthenticated
CVE Names: CVE-2012-3051
Member content until: Sunday, July 7 2013
A vulnerability has been identified in versions prior to
Cisco NX-OS 5.2.9 on the Nexus 7000 series switches.
The vendor has provided the following details regarding the
Ã¢Â€Â“The Adjmgr process fails when an ARP packet is received.
Ã¢Â€Â“The adjacency manager can have a stale entry that cause packet drops.
This symptom might be seen when continuous ARP packets are received
for a long period of time from various hosts in the subnet destined
to a Cisco Nexus 7000 Series switch IP address." 
The vendor recommends upgrading to 5.2.9 to mitigate this
 Cisco Nexus 7000 Series NX-OS Release Notes, Release 5.2
AusCERT has made every effort to ensure that the information contained
in this document is accurate. However, the decision to use the information
described is the responsibility of each user or organisation. The decision to
follow or act on information or advice contained in this security bulletin is
the responsibility of each user or organisation, and should be considered in
accordance with your organisation's site policies and procedures. AusCERT
takes no responsibility for consequences which may arise from following or
acting on information or advice contained in this security bulletin.
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