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Insecure Library Loading
Moderately critical

GNU gzip "huft_build()" Input Sanitation Vulnerability

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Release Date:  2010-01-21    Views:  5,292

Secunia Advisory SA38132

Where:

From remote

Impact:

DoS, System access

Solution Status:

Vendor Patch

Software:

CVE Reference(s):

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

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

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

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

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