Secunia Security Advisory - Secunia Research has discovered a vulnerability in ClamAV, which can be exploited by malicious people to compromise a vulnerable system.
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TITLE:
ClamAV Upack Processing Buffer Overflow Vulnerability
SECUNIA ADVISORY ID:
SA29000
VERIFY ADVISORY:
http://secunia.com/advisories/29000/
CRITICAL:
Highly critical
IMPACT:
DoS, System access
WHERE:
>From remote
SOFTWARE:
Clam AntiVirus (clamav) 0.x
http://secunia.com/product/2538/
DESCRIPTION:
Secunia Research has discovered a vulnerability in ClamAV, which can
be exploited by malicious people to compromise a vulnerable system.
The vulnerability is caused due to a boundary error within the
"cli_scanpe()" function in libclamav/pe.c. This can be exploited to
cause a heap-based buffer overflow via a specially crafted "Upack"
executable.
Successful exploitation allows execution of arbitrary code.
The vulnerability is confirmed in versions 0.92 and 0.92.1. Prior
versions may also be affected.
SOLUTION:
An updated version should be available shortly. The PE scanning
module has been remotely switched off after 10/03/2008.
Do not scan untrusted PE files.
PROVIDED AND/OR DISCOVERED BY:
Alin Rad Pop, Secunia Research.
ORIGINAL ADVISORY:
Secunia Research:
http://secunia.com/secunia_research/2008-11/
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About:
This Advisory was delivered by Secunia as a free service to help
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