Description
A memory leak (out-of-memory) in gif2rgb in util/gif2rgb.c in giflib 5.1.4 allows remote attackers trigger an out of memory exception or denial of service via a gif format 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 | 5.2.2-1 | — |
| Debian 13 | giflib | 5.2.2-1 | — |
| Debian 12 | giflib | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | giflib | 5.1.9-2ubuntu0.1 | USN-6824-1 |
| Ubuntu 20.04 LTS | giflib | 5.1.9-1ubuntu0.1 | USN-6824-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | giflib | 5.1.4-2ubuntu0.1+esm1 | USN-6824-1 |
| Ubuntu Pro 16.04 LTS | giflib | 5.1.4-0.3~16.04.1+esm1 | USN-6824-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP5 | giflib | 5.2.2-150000.4.13.1 | SUSE-SU-2024:0786-1 |
| SLES 15 SP4 | giflib | 5.2.2-150000.4.13.1 | SUSE-SU-2024:0786-1 |
| SLES 15 SP3 | giflib | 5.2.2-150000.4.13.1 | SUSE-SU-2024:0786-1 |
| SLES 15 SP2 | giflib | 5.2.2-150000.4.13.1 | SUSE-SU-2024:0786-1 |
| SLES 12 SP5 | giflib | 5.0.5-13.3.1 | SUSE-SU-2024:1622-1 |
Show 10 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP4 | giflib | 5.2.2-150000.4.13.1 | SUSE-SU-2024:0786-1 |
| SLES for SAP 15 SP3 | giflib | 5.2.2-150000.4.13.1 | SUSE-SU-2024:0786-1 |
| SLES for SAP 15 SP2 | giflib | 5.2.2-150000.4.13.1 | SUSE-SU-2024:0786-1 |
| SLES for SAP 12 SP5 | giflib | 5.0.5-13.3.1 | SUSE-SU-2024:1622-1 |
| SLE HPC 15 SP4 | giflib | 5.2.2-150000.4.13.1 | SUSE-SU-2024:0786-1 |
| SLE HPC 15 SP3 | giflib | 5.2.2-150000.4.13.1 | SUSE-SU-2024:0786-1 |
| SLE HPC 15 SP2 | giflib | 5.2.2-150000.4.13.1 | SUSE-SU-2024:0786-1 |
| SUSE Manager Server 4.3 | giflib | 5.2.2-150000.4.13.1 | SUSE-SU-2024:0786-1 |
| SUSE Manager Proxy 4.3 | giflib | 5.2.2-150000.4.13.1 | SUSE-SU-2024:0786-1 |
| SUSE Enterprise Storage 7.1 | giflib | 5.2.2-150000.4.13.1 | SUSE-SU-2024:0786-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | giflib | 5.2.2-1.1 | openSUSE-SU-2024:13723-1 |
| openSUSE Leap 15.5 | giflib | 5.2.2-150000.4.13.1 | SUSE-SU-2024:0786-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | giflib | 5.2.2-r0 | — |
| Alpine v3.23 | giflib | 5.2.2-r0 | — |
| Alpine v3.22 | giflib | 5.2.2-r0 | — |
| Alpine v3.21 | giflib | 5.2.2-r0 | — |
| Alpine v3.20 | giflib | 5.2.2-r0 | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | giflib | 5.2.2-r0 | — |
| Alpine v3.18 | giflib | 5.2.2-r0 | — |
| Alpine v3.17 | giflib | 5.2.2-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | giflib +2 | 4.1.6-9.amzn2.0.4 | ALAS2-2025-2998 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | giflib | 5.2.1-10 | — |
Advisories 5
- USN-6824-1 giflib vulnerabilities Ubuntu Security Notices (USN) · Jun 25, 2026
- openSUSE-SU-2024:13723-1 giflib-devel-32bit-5.2.2-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:0786-1 Security update for giflib SUSE / openSUSE Security Updates · Feb 4, 2026
- ALAS2-2025-2998 Low: giflib security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Sep 16, 2025
- SUSE-SU-2024:1622-1 Security update for giflib SUSE / openSUSE Security Updates · May 2, 2025