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Cisco Bug: CSCuj16824 - Cisco FWSM Cut-Through Proxy Denial of Service Vulnerability

Last Modified

Aug 11, 2015

Products (1)

  • Cisco Catalyst 6500 Series Firewall Services Module

Known Affected Releases

4.1(10)

Description (partial)

Symptom:
Cisco Firewall Services Module (FWSM) Software contains a vulnerability that could allow an unauthenticated, remote attacker to cause a reload of an affected system.

The vulnerability is due to a race condition when releasing the memory allocated by the cut-through proxy function. An attacker could exploit this vulnerability by sending traffic to match the condition that triggers cut-through proxy authentication.

Cisco has released free software updates that address this vulnerability. 

Workarounds that mitigate the vulnerability are not available. 

This advisory is available at the following link:http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20140219-fwsm

Conditions:
See published Cisco Security Advisory
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Bug Details Include

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