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Home >> Browse Vulnerability Assessment Database >> Red Hat Local Security Checks >> RHSA-2005-569: zlib


Vulnerability Assessment Details

RHSA-2005-569: zlib

Vulnerability Assessment Summary
Check for the version of the zlib packages

Detailed Explanation for this Vulnerability Assessment


Updated Zlib packages that fix a buffer overflow are now available for Red
Hat Enterprise Linux 4.

This update has been rated as having important security impact by the Red
Hat Security Response Team.

Zlib is a general-purpose lossless data compression library which is used
by many different programs.

Tavis Ormandy discovered a buffer overflow affecting Zlib version 1.2 and
above. A possible hacker could create a carefully crafted compressed stream that
would cause an application to crash if the stream is opened by a user. As
an example, a possible hacker could create a malicious PNG image file which would
cause a web browser or mail viewer to crash if the image is viewed. The
Common Vulnerabilities and Exposures project assigned the name
CVE-2005-2096 to this issue.

Please note that the versions of Zlib as shipped with Red Hat Enterprise
Linux 2.1 and 3 are not vulnerable to this issue.

All users should update to these erratum packages which contain a patch
from Mark Adler which corrects this issue.




Solution : http://rhn.redhat.com/errata/RHSA-2005-569.html
Network Security Threat Level: High

Networks Security ID:

Vulnerability Assessment Copyright: This script is Copyright (C) 2005 Tenable Network Security

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