Advisory Details

May 8th, 2006

Sophos Anti-Virus CAB Unpacking Code Execution Vulnerability

ZDI-06-012
ZDI-CAN-032

CVE ID CVE-2006-0994
CVSS SCORE
AFFECTED VENDORS Sophos
AFFECTED PRODUCTS Sophos Anti-Virus
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID ['4185', '4189']. For further product information on the TippingPoint IPS: http://www.tippingpoint.com
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Sophos AntiVirus. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the unpacking of Microsoft Cabinet files that contain invalid folder count values within the CAB header. Parsing of a specially crafted cabinet file can lead to an exploitable heap corruption. This vulnerability is only exposed when cabinet file inspection is explicitly enabled.
ADDITIONAL DETAILS Sophos has issued an update to correct this vulnerability. More details can be found at:
http://www.sophos.com/support/knowledgebase/article/4934.html
DISCLOSURE TIMELINE
  • 2006-03-20 - Vulnerability reported to vendor
  • 2006-05-08 - Coordinated public release of advisory
CREDIT Anonymous
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