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http://secunia.com/blog/71/



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TITLE:
GNU gzip "unlzw()" Integer Underflow Vulnerability

SECUNIA ADVISORY ID:
SA38220

VERIFY ADVISORY:
http://secunia.com/advisories/38220/

DESCRIPTION:
A vulnerability has been reported in GNU gzip, which can be exploited
by malicious people to potentially compromise a user's system.

The vulnerability is cause due to an error within the "unlzw()"
function in unlzw.c, which can be exploited by tricking a user into
decompressing a specially crafted LZW compressed gzip archive.

Note: Reportedly, this only affects 64-bit systems.

The vulnerability is reported in versions prior to 1.4.

SOLUTION:
Update to version 1.4.

PROVIDED AND/OR DISCOVERED BY:
Aki Helin, Oulu University Secure Programming Group

ORIGINAL ADVISORY:
http://savannah.gnu.org/forum/forum.php?forum_id=6153
http://git.savannah.gnu.org/cgit/gzip.git/commit/?id=a3db5806d012082b9e25cc36d09f19cd736a468f

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