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TITLE:
Hammer of Thyrion "HuffDecode()" Buffer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA28124

VERIFY ADVISORY:
http://secunia.com/advisories/28124/

CRITICAL:
Moderately critical

IMPACT:
DoS, System access

WHERE:
>From remote

SOFTWARE:
Hammer of Thyrion 1.x
http://secunia.com/product/16969/

DESCRIPTION:
A vulnerability has been reported in Hammer of Thyrion, which can be
exploited by malicious people to cause a DoS (Denial of Service) or
to potentially compromise a vulnerable system.

The vulnerability is caused due to a boundary error when processing
huffman encoded data within the "HuffDecode()" function in
hw_utils/hwrcon/huffman.c and hexenworld/Client/huffman.c. This can
be exploited to cause a buffer overflow via a specially crafted
huffman encoded packet.

The vulnerability is reported in version 1.4.2. Other versions may
also be affected.

SOLUTION:
Fixed in beta version 1.4.3-cvs (20071215).
http://uhexen2.cvs.sourceforge.net/uhexen2/hexenworld/Client/huffman.c?r1=1.24&r2=1.25
http://uhexen2.cvs.sourceforge.net/uhexen2/hw_utils/hwrcon/huffman.c?r1=1.18&r2=1.19

PROVIDED AND/OR DISCOVERED BY:
Reported by the vendor.

ORIGINAL ADVISORY:
http://sourceforge.net/project/shownotes.php?release_id=562016&group_id=124987

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About:
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