ZDI-07-039: Symantec AntiVirus Engine RAR File Parsing DoS Vulnerability
https://www.zerodayinitiative.com/advisories/ZDI-07-039.html
July 12, 2007

-- CVE ID:
CVE-2007-3699

-- Affected Vendor:
Symantec

-- Affected Products:
Symantec AntiVirus Engine


-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability since November 20, 2006 by Digital Vaccine protection
filter ID 4695,4824. For further product information on the TippingPoint 
IPS:

    https://www.tippingpoint.com 

-- 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.

-- Vendor Response:
Symantec has issued an update to correct this vulnerability. More
details can be found at:

    https://www.symantec.com/avcenter/security/Content/2007.07.11f.html

-- Disclosure Timeline:
2006.11.01 - Vulnerability reported to vendor
2006.11.20 - Digital Vaccine released to TippingPoint customers
2007.07.12 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by an anonymous researcher.

-- About the Zero Day Initiative (ZDI):
Established by TippingPoint, a division of 3Com, The Zero Day Initiative
(ZDI) represents a best-of-breed model for rewarding security
researchers for responsibly disclosing discovered vulnerabilities.

Researchers interested in getting paid for their security research
through the ZDI can find more information and sign-up at:

    https://www.zerodayinitiative.com

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vulnerability are not exposed to any parties until an official vendor
patch is publicly available. Furthermore, with the altruistic aim of
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who have a vulnerability protection or mitigation product.

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