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2004: 3,100 advisories published
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2006: 5,300 advisories published

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TITLE:
ClamAV "cli_scanpe()" MEW Handling Integer Overflow

SECUNIA ADVISORY ID:
SA28117

VERIFY ADVISORY:
http://secunia.com/advisories/28117/

CRITICAL:
Highly critical

IMPACT:
DoS, System access

WHERE:
>From remote

SOFTWARE:
Clam AntiVirus (clamav) 0.x
http://secunia.com/product/2538/

DESCRIPTION:
A vulnerability has been reported in ClamAV, which can be exploited
by malicious people to cause a DoS (Denial of Service) or compromise
a vulnerable system.

The vulnerability is caused due to an integer overflow error within
the "cli_scanpe()" function when handling MEW packed executables.
This can be exploited to cause a heap-based buffer overflow via
specially crafted "ssize" and "dsize" values.

Successful exploitation allows execution of arbitrary code.

The vulnerability is reported in versions prior to 0.92.

SOLUTION:
Update to version 0.92.

PROVIDED AND/OR DISCOVERED BY:
Discovered by an anonymous researcher and reported via iDefense Labs.

ORIGINAL ADVISORY:
ClamAV:
http://sourceforge.net/project/shownotes.php?release_id=562254&group_id=86638

iDefense:
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=634

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