Description
Heap-based buffer overflow in util/gif2rgb.c in gif2rgb in giflib 5.1.2 allows remote attackers to cause a denial of service (application crash) via the background color index in a GIF file.
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 ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | giflib | 5.1.4-3 | — |
| Debian 13 | giflib | 5.1.4-3 | — |
| Debian 12 | giflib | 5.1.4-3 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | giflib | 5.1.4-2ubuntu0.1 | USN-4107-1 |
| Ubuntu 16.04 LTS | giflib | 5.1.4-0.3~16.04.1 | USN-4107-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP3 | giflib | 5.2.1-150000.4.8.1 | SUSE-SU-2022:1565-1 |
| SLES 15 SP2 | giflib | 5.2.1-150000.4.8.1 | SUSE-SU-2023:1970-2 |
| SLES 15 SP1 | giflib | 5.2.1-150000.4.8.1 | SUSE-SU-2023:1970-2 |
| SLES 12 SP1 | giflib | 5.0.5-12.1 | SUSE-SU-2016:1140-1 |
| SLES 12 | giflib | 5.0.5-12.1 | SUSE-SU-2016:1140-1 |
Show 10 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 11 SP4 | giflib | 4.1.6-21.1 | SUSE-SU-2016:1139-1 |
| SLES for SAP 15 SP2 | giflib | 5.2.1-150000.4.8.1 | SUSE-SU-2023:1970-2 |
| SLES for SAP 15 SP1 | giflib | 5.2.1-150000.4.8.1 | SUSE-SU-2023:1970-2 |
| SLES for SAP 12 SP1 | giflib | 5.0.5-12.1 | SUSE-SU-2016:1140-1 |
| SLES for SAP 12 | giflib | 5.0.5-12.1 | SUSE-SU-2016:1140-1 |
| SLES for SAP 11 SP4 | giflib | 4.1.6-21.1 | SUSE-SU-2016:1139-1 |
| SLE Real Time 15 SP2 | giflib | 5.2.1-150000.4.8.1 | SUSE-SU-2022:1565-1 |
| SLE HPC 15 SP2 | giflib | 5.2.1-150000.4.8.1 | SUSE-SU-2023:1970-2 |
| SLE HPC 15 SP1 | giflib | 5.2.1-150000.4.8.1 | SUSE-SU-2023:1970-2 |
| SUSE Enterprise Storage 7 | giflib | 5.2.1-150000.4.8.1 | SUSE-SU-2023:1970-2 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | giflib | 5.1.4-1.12 | openSUSE-SU-2024:10016-1 |
| openSUSE Leap 15.4 | giflib | 5.2.1-150000.4.8.1 | SUSE-SU-2022:1565-1 |
| openSUSE Leap 15.3 | giflib | 5.2.1-150000.4.8.1 | SUSE-SU-2022:1565-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.4 | giflib | 5.1.4-r0 | — |
Advisories 6
- USN-4107-1 giflib vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- SUSE-SU-2022:1565-1 Security update for giflib SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10016-1 giflib-devel-32bit-5.1.4-1.12 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:1140-1 Security update for giflib SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:1970-2 Security update for giflib SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:1139-1 Security update for giflib SUSE / openSUSE Security Updates · May 2, 2025
References
- 88103 vdb-entry
- openSUSE-SU-2016:1118 vendor-advisory
- https://sourceforge.net/p/giflib/bugs/87/
- https://sourceforge.net/p/giflib/code/ci/ea8dbc5786862a3e16a5acfa3d24e2c2f608cd88/
- openSUSE-SU-2016:1111 vendor-advisory
- http://bugs.fi/fuzzing/index.html
- openSUSE-SU-2016:1219 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1325771
- USN-4107-1 vendor-advisory