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TITLE:
ClamAV MIME Header Handling and CAB File Processing Vulnerabilities

SECUNIA ADVISORY ID:
SA24187

VERIFY ADVISORY:
http://secunia.com/advisories/24187/

CRITICAL:
Moderately critical

IMPACT:
DoS

WHERE:
>From remote

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

DESCRIPTION:
Two vulnerabilities have been reported in ClamAV, which can be
exploited by malicious people to cause a DoS (Denial of Service).

1) Input passed via the "id" parameter when parsing MIME headers is
not properly sanitised before being used to create local files. This
can be exploited to e.g. overwrite the anti-virus signature file via
directory traversal attacks, preventing malware from being detected.

2) An file descriptor leak error in the processing of CAB files can
be exploited to e.g. prevent legitimate users from sending out valid
archives via a specially crafted CAB file with a cabinet header
containing a record length of zero.

The vulnerabilities are reported in versions prior to 0.90.

SOLUTION:
Update to version 0.90.

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

ORIGINAL ADVISORY:
iDefense Labs:
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=475
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=476

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