TippingPoint Zero Day Initiative
 

Sophos Anti-Virus SIT Archive Parsing Buffer Overflow Vulnerability

ZDI-06-046: December 12th, 2006

CVE ID

Affected Vendors

Affected Products

TippingPoint™ IPS Customer Protection

TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 4917. For further product information on the TippingPoint IPS:

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Sophos Anti-Virus.

The specific flaw exists in the parsing of SIT archives. When a long non-null terminated filename is processed by veex.dll, a heap overflow occurs due to the miscalculation of the string's actual size. Exploitation is possible leading to remote code execution running under the SYSTEM context.

Vendor Response

Sophos has issued an update to correct this vulnerability. More details can be found at:

Disclosure Timeline

    2006-09-14 - Vulnerability reported to vendor
    2006-12-12 - Coordinated public release of advisory

Credit

This vulnerability was discovered by:
    Anonymous