Symantec AntiVirus Engine RAR File Parsing DoS Vulnerability

Vulnerability Details

This vulnerability allows attackers to create a denial of service condition on software with vulnerable installations of the Symantec's AntiVirus engine. Authentication is not required to exploit this vulnerability.

The specific flaw resides in a forged PACK_SIZE field of a RAR file header. By setting this field to a specific value an infinite loop denial of service condition will occur when the scanner processes the file.

Additional Details

Symantec has issued an update to correct this vulnerability. More details can be found at:
http://www.symantec.com/avcenter/security/Content/2007.07.11f.html

Disclosure Timeline

• 2006-11-01 - Vulnerability reported to vendor
• 2007-07-12 - Coordinated public release of advisory

Credit

Anonymous

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