20470 : libungif/giflib Malformed .gif File NULL Dereference DoS
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
5	542	over 6 years ago	over 3 years ago	0 times	90%

Timeline

Disclosure Date
2005-11-04

Keywords

RHSA-2005:828-17, GLSA 200511-03, SUSE-SR:2005:025

Description

libungif contains a flaw that may allow a remote denial of service. The issue is triggered when a program using libungif opens a specially crafted GIF file. Due to a flaw in the library, this may cause the ColorMaps value incorrectly when freeing a colormap object, and will result in the program crashing with a NULL dereference.

Classification

Location: Remote / Network Access
Attack Type: Denial of Service
Impact: Loss of Availability
Exploit: Exploit Unknown
Disclosure: OSVDB Verified, Vendor Verified

Technical

This vulnerability exists in lib/dgif_lib.c, lib/egif_lib.c, and lib/gifalloc.c.

Solution

Upgrade to version 4.1.4 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

Products

libungif

4.1.3

giflib

4.1.3

References

Security Tracker: 1015149
Bugtraq ID: 15304
Secunia Advisory ID: 17436 17438 17442 17462 17482 17488 17497 17508 17559 17757 34872 35164
CVE ID: 2005-2974 (see also: NVD)
Related OSVDB ID: 20471
Other Advisory URL: ftp://patches.sgi.com/support/free/security/advisories/20051101-01-U.asc http://www.debian.org/security/2005/dsa-890
http://www.gentoo.org/security/en/glsa/glsa-200511-03.xml
Vendor Specific Advisory URL: http://frontal2.mandriva.com/security/advisories?name=MDKSA-2005:207
http://lists.ubuntu.com/archives/ubuntu-security-announce/2005-November/000240.html
http://www.novell.com/linux/security/advisories/2005_26_sr.html
Vendor Specific News/Changelog Entry: http://sourceforge.net/project/shownotes.php?group_id=102202&release_id=364493
http://sourceforge.net/project/shownotes.php?release_id=364493
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=171413
https://www.redhat.com/archives/fedora-package-announce/2009-May/msg00771.html
Vendor URL: http://sourceforge.net/projects/libungif
RedHat RHSA: https://rhn.redhat.com/errata/RHSA-2009-0444.html
RHSA-2005:828
Keyword: RHSA-2005:828-17,GLSA 200511-03,SUSE-SR:2005:025

Tools & Filters

	20145 20153 20441 20632 22756

Credit

Chris Evans - chrisscary.beasts.org -

CVSSv2 Score

CVSSv2 Base Score = 2.6
Source: nvd.nist.gov | Generated: 2005-11-03 | Disagree?

Blogs

This product uses the Daylife API but is not endorsed or certified by Daylife.

This section lists the latest news and blogs found via the daylife API (and for older items, the technorati API), which mention or otherwise discuss this vulnerability.

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