clamav -- possible heap overflow in the UPX code

Description:

The Zero Day Initiative reports:

This vulnerability allows remote attackers to execute arbitrary code on vulnerable Clam AntiVirus installations. Authentication is not required to exploit this vulnerability.

This specific flaw exists within libclamav/upx.c during the unpacking of executable files compressed with UPX. Due to an invalid size calculation during a data copy from the user-controlled file to heap allocated memory, an exploitable memory corruption condition is created.

References:

• BugTraq ID 16191
• CVE name CVE-2006-0162
• List post: <http://lurker.clamav.net/message/20060109.213247.a16ae8db.en.html>
• URL: <http://www.zerodayinitiative.com/advisories/ZDI-06-001.html>
• URL: <http://secunia.com/advisories/18379/>

Affects:

• clamav <0.88
• clamav-devel <20060110

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