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TITLE:
Clam AntiVirus Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA16180

VERIFY ADVISORY:
http://secunia.com/advisories/16180/

CRITICAL:
Highly critical

IMPACT:
DoS, System access

WHERE:
>From remote

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

DESCRIPTION:
Neel Mehta and Alex Wheeler have reported some vulnerabilities in
Clam AntiVirus, which can be exploited by malicious people to cause a
DoS (Denial of Service) or compromise a vulnerable system.

1) Two integer overflow errors in "libclamav/tnef.c" when processing
TNEF files can be exploited to cause a heap-based buffer overflow via
a specially crafted TNEF file with a length value of -1 in the
header.

2) An integer overflow error in "libclamav/chmunpack.c" can be
exploited to cause a heap-based buffer overflow via a specially
crafted CHM file with a chunk entry that has a filename length of
-1.

3) A boundary error in "libclamav/fsg.c" when processing a FSG
compressed file can cause a heap-based buffer overflow.

The vulnerabilities have been reported in versions 0.86.1 and prior.

SOLUTION:
Update to version 0.86.2.

PROVIDED AND/OR DISCOVERED BY:
Neel Mehta and Alex Wheeler.

ORIGINAL ADVISORY:
http://www.rem0te.com/public/images/clamav.pdf

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About:
This Advisory was delivered by Secunia as a free service to help
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