GLSA Advocate
Joined: 12 May 2004 Posts: 2663
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Posted: Fri Nov 04, 2005 3:50 pm Post subject: [ GLSA 200511-03 ] giflib: Multiple vulnerabilities |
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Gentoo Linux Security Advisory
Title: giflib: Multiple vulnerabilities (GLSA 200511-03)
Severity: normal
Exploitable: remote
Date: November 04, 2005
Bug(s): #109997
ID: 200511-03
Synopsis
giflib may dereference NULL or write out of bounds when processing malformed images, potentially resulting in Denial of Service or arbitrary code execution.
Background
giflib is a library for reading and writing GIF images.
Affected Packages
Package: media-libs/giflib
Vulnerable: < 4.1.4
Unaffected: >= 4.1.4
Architectures: All supported architectures
Description
Chris Evans and Daniel Eisenbud independently discovered two out-of-bounds memory write operations and a NULL pointer dereference in giflib.
Impact
An attacker could craft a malicious GIF image and entice users to load it using an application making use of the giflib library, resulting in an application crash or potentially the execution of arbitrary code.
Workaround
There is no known workaround at this time.
Resolution
All giflib users should upgrade to the latest version: Code: | # emerge --sync
# emerge --ask --oneshot --verbose ">=media-libs/giflib-4.1.4" |
References
CVE-2005-2974
CVE-2005-3350
Last edited by GLSA on Sun May 07, 2006 4:59 pm; edited 1 time in total |
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