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Cisco Bug: CSCsz06748 - ASA traceback in inspect Skinny

Last Modified

Mar 08, 2018

Products (1)

  • Cisco ASA 5500-X Series Firewalls

Known Affected Releases

8.0(4) 8.0(4.27) 8.0(4.29)

Description (partial)

Cisco ASA may experience a reload when receiving malformed Skinny packets.  The perceived malformed packet may actually be a valid SCCPv17 message.

The issue was happened in client-mode Ezvpn situation.The client is IOS device and the server is ASA. As soon as an SCCPv17 phone try to  Registering on CM.  This issue is only experienced when inspect skinny is enabled.

Related Community Discussions

Network support for UCM7.x and SCCPv17
Overview Cisco UCM version 7.0 and Cisco UCME 8.0 (IOS 15.0(1)XA) introduce version 17 of the SCCP signaling protocol. SCCPv17 significantly changes message formats from previous versions.  User functionality will be impacted if a network device that lacks SCCPv17 support attempts NAT fixup or inspection of the SCCP protocol.       Symptoms Symptoms are more likely to be observed with: 3rd gen phones running phone load 8.4 or later UCM 7.0 or later UCME 8.0 or later ( IOS 15.0(1)XA or later )   Various ...
Latest activity: Mar 15, 2010
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