TITLE:
Kaspersky Anti-Virus Engine CHM File Parsing Buffer Overflow

SECUNIA ADVISORY ID:
SA17130

VERIFY ADVISORY:
http://secunia.com/advisories/17130/

CRITICAL:
Highly critical

IMPACT:
DoS, System access

WHERE:
>From remote

SOFTWARE:
Kaspersky Anti-Virus 5.x
http://secunia.com/product/2781/

DESCRIPTION:
A vulnerability has been reported in Kaspersky Anti-Virus, 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 a boundary error in the scan
engine when parsing a malformed CHM file. This can be exploited to
cause a heap-based buffer overflow when a specially crafted CHM file
is scanned. On Windows platforms, the anti-virus may fail to scan any
other files after a malformed CHM file has been encountered.

The vulnerability has been reported in the following versions:
* Kaspersky Personal 5.0.227
* Kaspersky Anti-Virus On-Demand Scanner for Linux 5.0.5

Other products that use the Kaspersky Anti-Virus Engine may also be
affected.

SOLUTION:
The vulnerability has reportedly been fixed via a signature update
after July 2005.

PROVIDED AND/OR DISCOVERED BY:
Discovered by anonymous person and reported via iDEFENSE.

ORIGINAL ADVISORY:
iDEFENSE:
http://www.idefense.com/application/poi/display?id=318&type=vulnerabilities

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