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TITLE:
GNU gzip "huft_build()" Input Sanitation Vulnerability

SECUNIA ADVISORY ID:
SA38132

VERIFY ADVISORY:
http://secunia.com/advisories/38132/

DESCRIPTION:
A vulnerability has been reported in GNU gzip, which can be exploited
by malicious people to cause a DoS (Denial of Service) and potentially
compromise a user's system.

The vulnerability is caused due to an input sanitation error within
the "huft_build()" function in inflate.c, which can be exploited to
cause an infinite loop and potentially execute arbitrary code by
tricking a user into decompressing a specially crafted archive.

This may be related to vulnerability #4 in:
SA21996

SOLUTION:
Update to version 1.3.13 or later.

PROVIDED AND/OR DISCOVERED BY:
Thiemo Nagel

CHANGELOG:
2010-01-21: Updated link to Debian bug report.

ORIGINAL ADVISORY:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=507263
http://git.savannah.gnu.org/cgit/gzip.git/commit/?id=39a362ae9d9b007473381dba5032f4dfc1744cf2
http://article.gmane.org/gmane.comp.gnu.gzip.bugs/258

OTHER REFERENCES:
SA21996:
http://secunia.com/advisories/21996/

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