Description
libungif library before 4.1.0 allows attackers to cause a denial of service via a crafted GIF file that triggers a null dereference.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | giflib +2 | 4.1.3-7.1.el5_3.1 | RHSA-2009:0444 |
| RHEL 4 | libungif +2 | 4.1.3-1.el4.2 | RHSA-2005:828 |
| RHEL 3 | libungif +1 | 4.1.0-15.el3.3 | RHSA-2005:828 |
Advisories 3
- RHSA-2009:0444 Red Hat Security Advisory: giflib security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2005:828 Red Hat Security Advisory: libungif security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-890-1 libungif4 - several Debian Security (DSA / DLA) · Mar 9, 2026
References
- 17508 third-party-advisory
- 17438 third-party-advisory
- FLSA-2006:174479 vendor-advisory
- 17482 third-party-advisory
- http://bugs.gentoo.org/show_bug.cgi?id=109997
- 17442 third-party-advisory
- 34872 third-party-advisory
- RHSA-2005:828 vendor-advisory
- 17559 third-party-advisory
- USN-214-1 vendor-advisory
- 17488 third-party-advisory
- RHSA-2009:0444 vendor-advisory
- FEDORA-2009-5118 vendor-advisory
- https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=171413
- oval:org.mitre.oval:def:10994 vdb-entry signature
- GLSA-200511-03 vendor-advisory
- http://sourceforge.net/project/shownotes.php?release_id=364493
- FEDORA-2005-1045 vendor-advisory
- ADV-2005-2295 vdb-entry
- 17436 third-party-advisory
- DSA-890 vendor-advisory
- FLSA:174479 vendor-advisory
- http://scary.beasts.org/security/CESA-2005-007.txt
- 1015149 vdb-entry
- FEDORA-2005-1046 vendor-advisory
- 15304 vdb-entry
- 20470 vdb-entry
- 17462 third-party-advisory
- MDKSA-2005:207 vendor-advisory
- 17497 third-party-advisory
- 35164 third-party-advisory