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>> Sophos AntiVirus Products Cabinet File Handling Memory Corruption Vulnerability

Title : Sophos AntiVirus Products Cabinet File Handling Memory Corruption Vulnerability
VUPEN ID : VUPEN/ADV-2006-1730
CVE ID : CVE-2006-0994
Rated as : Critical 
Remotely Exploitable : Yes
Locally Exploitable : Yes
Release Date : 2006-05-09


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A vulnerability has been identified in various Sophos Anti-Virus products, which could be exploited by attackers or malware to take complete control of an affected system. This flaw is due to a heap corruption error within the unpacking of Cabinet (".CAB") files containing invalid folder count values within the CAB header, which could be exploited by attackers to execute arbitrary commands and compromise a vulnerable system (e.g. by sending an e-mail containing a malicious CAB file to a machine being protected by an affected Anti-Virus product).

Affected Products

Sophos Anti-Virus for Windows 2000/XP/2003 version 5.2.0 and prior
Sophos Anti-Virus for Windows 95/98/Me version 4.5.11 and prior
Sophos Anti-Virus for Windows NT version 4.5.11 and prior
Sophos Anti-Virus for Windows NT/2000/XP/2003 version 4.04 and prior
Sophos Anti-Virus for Windows 95/98/Me version 4.04 and prior
Sophos Anti-Virus for Mac OS X version 4.7.1 and prior
Sophos Anti-Virus for Mac OS 8/9 version 4.04 and prior
Sophos Anti-Virus for UNIX/Linux version 4.04 and prior
Sophos Anti-Virus for NetWare version 4.04 and prior
Sophos Anti-Virus for OS/2 version 4.04 and prior
Sophos Anti-Virus for OpenVMS version 4.04 and prior
Sophos Anti-Virus for DOS/Windows 3.1x version 4.04 and prior
Sophos Anti-Virus Small Business Edition (Windows) version 4.04 and prior
Sophos Anti-Virus Small Business Edition (Mac) version 4.04 and prior
PureMessage Small Business Edition version 4.04 and prior
PureMessage for Windows/Exchange SAV version version 5.2.0 and prior
PureMessage for UNIX SAV version version 4.04 and prior
MailMonitor for SMTP - Windows SAV version version 4.04 and prior
MailMonitor for SMTP - Windows SAV version version 4.04 and prior
MailMonitor for Notes/Domino SAV version version 4.04 and prior
MailMonitor for Exchange SAV version version 4.04 and prior

Solution

Apply patches :
http://www.sophos.com/support/knowledgebase/article/4934.html

References

http://www.vupen.com/english/advisories/2006/1730
http://www.frsirt.com/english/reference/11468
http://www.sophos.com/support/knowledgebase/article/4934.html

Credits

Vulnerability reported by Zero Day Initiative

ChangeLog

2006-05-09 : Initial release

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