Two vulnerabilities have been reported in various Symantec products, which can be exploited by malicious people to cause a DoS (Denial of Service) or potentially compromise a vulnerable system.

1) A boundary error within the Symantec Decomposer component when handling CAB archives can be exploited to cause a heap corruption via a specially crafted CAB archive.

Successful exploitation may allow execution of arbitrary code.

2) An input validation error within the Symantec Decomposer component when handling RAR archives can be exploited to cause an infinite loop via a RAR archive with a specially crafted header containing a forged PACK_SIZE field.

The vulnerabilities are reported in the following products and versions:
* Symantec Mail Security 8200 (all builds)
* Symantec Mail Security for Microsoft Exchange versions 4.6.3 and prior, 5.0.0.204, and 6.0.0 (all builds)
* Symantec Mail Security for Domino NT versions 4.1.4 and prior and 5.0.0.47 (all builds)
* Symantec AntiVirus/Filtering for Domino MPE(AIX, Linux, Solaris) versions 3.0.12 and prior (all builds)
* Symantec Scan Engine version 5.0.1 and prior (all builds)
* Symantec AntiVirus Scan Engine versions 4.1.8 and prior and 4.3.12 and prior (all builds)
* Symantec AntiVirus Scan Engine for MS ISA versions 4.3.12 and prior (all builds)
* Symantec AntiVirus Scan Engine for MS Sharepoint versions 4.3.12 and prior (all builds)
* Symantec AntiVirus Scan Engine for Messaging versions 4.3.12 and prior (all builds)
* Symantec AntiVirus for Network Attached Storage versions 4.3.12 and prior (all builds)
* Symantec AntiVirus Scan Engine for Clearswift versions 4.3.12 and prior (all builds)
* Symantec AntiVirus Scan Engine for Caching versions 4.3.12 and prior (all builds)
* Symantec Client Security versions 3.0, 3.x, and 2.x (all builds)
* Symantec Web Security versions 3.0.1.76 and prior (all builds)
* Symantec Gateway Security 5000 Series version 3.01 (all builds)
* Symantec Gateway Security 5400 Series version 2.0.1 (all builds)
* Symantec Brightmail AntiSpam versions 6.0.x, 5.5, and 4.x (all builds)
* Symantec AntiVirus Corporate Edition versions 10.1, 10.0, and 9.0 (10.1.5.5000 and prior and 9.0.6.1000 and prior)
* Symantec AntiVirus Corperate Edition for Linux
* Symantec AntiVirus for Macintosh version 10.x (all builds)
* Symantec Web Security for Microsoft ISA 2004 version 5.0 (all builds)
* Symantec Mail Security for SMTP version 5.0.0 (Windows/Linux/Solaris) and 5.0.1 (all builds)
* Norton AntiVirus 2004/2005/2006
* Norton Internet Security 2004/2005/2005.5 AntiSpyware Edition/2006
* Norton SystemWorks 2004/2005/2006
* Norton Personal Firewall 2006
* Norton AntiVirus for Macintosh versions 9.x and 10.x
* Norton Internet Security for Macintosh version 3.x
* Norton SystemWorks for Macintosh version 3.x

Solution
Apply updates or run LiveUpdate. Please see the vendor's advisory for details.

Provided and/or discovered by
Discovered by an anonymous person and reported via ZDI.

Changelog
Further details available in Customer Area

Original Advisory
Symantec:
http://securityresponse.symantec.com/avcenter/security/Content/2007.07.11f.html

ZDI:
http://www.zerodayinitiative.com/advisories/ZDI-07-039.html
http://www.zerodayinitiative.com/advisories/ZDI-07-040.html

Deep Links
Links available in Customer Area