[security-alerts] FW: [SA22591] Sophos Anti-Virus RAR and CHM Denial of Service Vulnerabilities

["Kazennov, Vladimir" <Vladimir.Kazennov@xxxxxxxxxx>]

> 
> TITLE:
> Sophos Anti-Virus RAR and CHM Denial of Service Vulnerabilities
> 
> SECUNIA ADVISORY ID:
> SA22591
> 
> VERIFY ADVISORY:
> http://secunia.com/advisories/22591/
> 
> CRITICAL:
> Moderately critical
> 
> IMPACT:
> DoS
> 
> WHERE:
> From remote
> 
> SOFTWARE:
> Sophos Anti-Virus for Windows 6.x
> http://secunia.com/product/12449/
> Sophos Anti-Virus 5.x
> http://secunia.com/product/5390/
> Sophos Anti-Virus 4.x
> http://secunia.com/product/5391/
> Sophos Anti-Virus Small Business Edition
> http://secunia.com/product/9822/
> 
> DESCRIPTION:
> Some vulnerabilities have been reported in Sophos Anti-Virus, which
> can be exploited by malicious people to cause a DoS (Denial of
> Service).
> 
> 1) An unspecified error when processing RAR archives may in certain
> cases cause an infinite loop in the scanning engine and consume all
> available CPU resources.
> 
> 2) An unspecified error when processing CHM files may in certain
> cases result in a heap-based buffer overflow.
> 
> 3) An unspecified error when processing CHM files with long names may
> cause a memory corruption.
> 
> SOLUTION:
> The vulnerabilities will reportedly be fixed in December 2006.
> 
> PROVIDED AND/OR DISCOVERED BY:
> The vendor credits iDefense.
> 
> ORIGINAL ADVISORY:
> Sophos:
> http://www.sophos.com/support/knowledgebase/article/7609.html
>