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TITLE:
ClamAV CHM Processing Denial of Service

SECUNIA ADVISORY ID:
SA31725

VERIFY ADVISORY:
http://secunia.com/advisories/31725/

CRITICAL:
Moderately critical

IMPACT:
DoS

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).

The vulnerability is caused due to an error in libclamav/chmunpack.c
when processing malformed CHM files. This can be exploited to cause
an invalid memory access via a specially crafted CHM file.

The vulnerability is reported in versions prior to 0.94. Other
versions may also be affected.

Note: Various other issues, where some may be security related, were
also fixed.

SOLUTION:
Update to version 0.94.

PROVIDED AND/OR DISCOVERED BY:
Hanno Böck

ORIGINAL ADVISORY:
http://svn.clamav.net/svn/clamav-devel/trunk/ChangeLog
https://wwws.clamav.net/bugzilla/show_bug.cgi?id=1089

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About:
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Please Note:
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Secunia NEVER sends attached files with advisories.
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