Description
Buffer Overflow vulnerability in giflib v.5.2.2 allows a remote attacker to cause a denial of service via the EGifGCBToExtension overwriting an existing Graphic Control Extension block without validating its allocated size.
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 | 6.1.3-1 | — |
| Debian 13 | giflib | 5.2.2-1+deb13u1 | — |
| Debian 12 | giflib | 5.2.1-2.5+deb12u1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.04 LTS | giflib | 5.2.2-1ubuntu3.2 | USN-8583-1 |
| Ubuntu 25.10 | giflib | No fix yet | — |
| Ubuntu 24.04 LTS | giflib | 5.2.2-1ubuntu1.2 | USN-8583-1 |
| Ubuntu 22.04 LTS | giflib | 5.1.9-2ubuntu0.3 | USN-8583-1 |
| Ubuntu 20.04 LTS | giflib | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | giflib | No fix yet | — |
| Ubuntu Pro 16.04 LTS | giflib | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | giflib +1 | 5.2.1-25.el10_2 | RHSA-2026:33502 |
| RHEL 10 | java-21-openjdk +22 | 1:21.0.11.0.10-2.el10_2 | RHSA-2026:9689 |
| RHEL 10 | java-25-openjdk +25 | 1:25.0.3.0.9-1.el10_2 | RHSA-2026:9693 |
| RHEL 9 | giflib +1 | 5.2.1-10.el9_8.2 | RHSA-2026:33501 |
| RHEL 9 | java-1.8.0-openjdk +16 | 1:1.8.0.492.b09-2.el9 | RHSA-2026:9683 |
| RHEL 9 | java-17-openjdk +22 | 1:17.0.19.0.10-2.el9 | RHSA-2026:9686 |
| RHEL 9 | java-21-openjdk +22 | 1:21.0.11.0.10-2.el9 | RHSA-2026:9689 |
| RHEL 9 | java-25-openjdk +25 | 1:25.0.3.0.9-1.el9 | RHSA-2026:9693 |
| RHEL 8 | giflib +1 | 5.1.4-5.el8_10 | RHSA-2026:33503 |
| RHEL 8 | java-1.8.0-openjdk +19 | 1:1.8.0.492.b09-1.el8 | RHSA-2026:9683 |
| RHEL 8 | java-17-openjdk +22 | 1:17.0.19.0.10-1.el8 | RHSA-2026:9686 |
| RHEL 8 | java-21-openjdk +22 | 1:21.0.11.0.10-1.el8 | RHSA-2026:9689 |
Show 15 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10.0 EUS | giflib +1 | 5.2.1-22.el10_0.2 | RHSA-2026:33447 |
| RHEL 10.0 EUS | java-21-openjdk +22 | 1:21.0.11.0.10-1.el10_2 | RHSA-2026:9689 |
| RHEL 9.6 EUS | giflib +1 | 5.2.1-9.el9_6.2 | RHSA-2026:33451 |
| RHEL 9.6 EUS | java-1.8.0-openjdk +16 | 1:1.8.0.492.b09-1.el9 | RHSA-2026:9683 |
| RHEL 9.6 EUS | java-17-openjdk +22 | 1:17.0.19.0.10-1.el9 | RHSA-2026:9686 |
| RHEL 9.6 EUS | java-21-openjdk +22 | 1:21.0.11.0.10-1.el9 | RHSA-2026:9689 |
| RHEL 9.4 EUS | java-1.8.0-openjdk +16 | 1:1.8.0.492.b09-1.el9 | RHSA-2026:9683 |
| RHEL 9.4 EUS | java-17-openjdk +22 | 1:17.0.19.0.10-1.el9 | RHSA-2026:9686 |
| RHEL 9.4 EUS | java-21-openjdk +22 | 1:21.0.11.0.10-1.el9 | RHSA-2026:9689 |
| RHEL 9.4 E4S | giflib | 5.2.1-9.el9_4.2 | RHSA-2026:33452 |
| RHEL 9.2 E4S | giflib | 5.2.1-9.el9_2.2 | RHSA-2026:33509 |
| RHEL 9.2 E4S | java-1.8.0-openjdk +6 | 1:1.8.0.492.b09-1.el9 | RHSA-2026:9683 |
| RHEL 9.2 E4S | java-17-openjdk +8 | 1:17.0.19.0.10-1.el9 | RHSA-2026:9686 |
| RHEL 9.0 E4S | java-1.8.0-openjdk +6 | 1:1.8.0.492.b09-1.el9 | RHSA-2026:9683 |
| RHEL 9.0 E4S | java-17-openjdk +8 | 1:17.0.19.0.10-1.el9 | RHSA-2026:9686 |
| RHEL 8.8 TUS | giflib | 5.1.4-3.el8_8.2 | RHSA-2026:33456 |
| RHEL 8.8 TUS | java-1.8.0-openjdk +7 | 1:1.8.0.492.b09-1.el8 | RHSA-2026:9683 |
| RHEL 8.8 TUS | java-17-openjdk +8 | 1:17.0.19.0.10-1.el8 | RHSA-2026:9686 |
| RHEL 8.8 E4S | giflib | 5.1.4-3.el8_8.2 | RHSA-2026:33456 |
| RHEL 8.8 E4S | java-1.8.0-openjdk +7 | 1:1.8.0.492.b09-1.el8 | RHSA-2026:9683 |
| RHEL 8.8 E4S | java-17-openjdk +8 | 1:17.0.19.0.10-1.el8 | RHSA-2026:9686 |
| RHEL 8.6 TUS | java-1.8.0-openjdk +7 | 1:1.8.0.492.b09-1.el8 | RHSA-2026:9683 |
| RHEL 8.6 TUS | java-17-openjdk +8 | 1:17.0.19.0.10-1.el8 | RHSA-2026:9686 |
| RHEL 8.6 EUS Long Life | giflib | 5.1.4-3.el8_6.2 | RHSA-2026:33455 |
| RHEL 8.6 E4S | java-1.8.0-openjdk +7 | 1:1.8.0.492.b09-1.el8 | RHSA-2026:9683 |
| RHEL 8.6 E4S | java-17-openjdk +8 | 1:17.0.19.0.10-1.el8 | RHSA-2026:9686 |
| RHEL 8.6 AUS | giflib | 5.1.4-3.el8_6.2 | RHSA-2026:33455 |
| RHEL 8.6 AUS | java-1.8.0-openjdk +7 | 1:1.8.0.492.b09-1.el8 | RHSA-2026:9683 |
| RHEL 8.6 AUS | java-17-openjdk +8 | 1:17.0.19.0.10-1.el8 | RHSA-2026:9686 |
| RHEL 8.4 EUS Long Life | giflib | 5.1.4-3.el8_4.2 | RHSA-2026:33450 |
| RHEL 8.4 EUS Long Life | java-1.8.0-openjdk +7 | 1:1.8.0.492.b09-1.el8 | RHSA-2026:9683 |
| RHEL 8.4 EUS Long Life | java-17-openjdk +22 | 1:17.0.19.0.10-1.el8 | RHSA-2026:9686 |
| RHEL 8.4 AUS | giflib | 5.1.4-3.el8_4.2 | RHSA-2026:33450 |
| RHEL 8.4 AUS | java-1.8.0-openjdk +7 | 1:1.8.0.492.b09-1.el8 | RHSA-2026:9683 |
| RHEL 8.4 AUS | java-17-openjdk +8 | 1:17.0.19.0.10-1.el8 | RHSA-2026:9686 |
| RHEL 8.2 AUS | java-1.8.0-openjdk +7 | 1:1.8.0.492.b09-1.el8 | RHSA-2026:9683 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | giflib +1 | 5.2.1-25.el10_2 | ALSA-2026:33502 |
| AlmaLinux 10 | java-21-openjdk +22 | 1:21.0.11.0.10-2.el10_2.alma.1 | ALSA-2026:9689 |
| AlmaLinux 10 | java-25-openjdk +25 | 1:25.0.3.0.9-1.el10_2 | ALSA-2026:9693 |
| AlmaLinux 9 | giflib +1 | 5.2.1-10.el9_8.2 | ALSA-2026:33501 |
| AlmaLinux 9 | java-1.8.0-openjdk +16 | 1:1.8.0.492.b09-2.el9.alma.1 | ALSA-2026:9683 |
| AlmaLinux 9 | java-17-openjdk +22 | 1:17.0.19.0.10-2.el9.alma.1 | ALSA-2026:9686 |
| AlmaLinux 9 | java-21-openjdk +22 | 1:21.0.11.0.10-2.el9.alma.1 | ALSA-2026:9689 |
| AlmaLinux 9 | java-25-openjdk +25 | 1:25.0.3.0.9-1.el9.alma.1 | ALSA-2026:9693 |
| AlmaLinux 8 | giflib +1 | 5.1.4-5.el8_10 | ALSA-2026:33503 |
| AlmaLinux 8 | java-1.8.0-openjdk +19 | 1:1.8.0.492.b09-1.el8 | ALSA-2026:9683 |
| AlmaLinux 8 | java-17-openjdk +22 | 1:17.0.19.0.10-1.el8 | ALSA-2026:9686 |
| AlmaLinux 8 | java-21-openjdk +22 | 1:21.0.11.0.10-1.el8 | ALSA-2026:9689 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | giflib | 5.2.1-25.el10_2 | RLSA-2026:33502 |
| Rocky Linux 10 | java-25-openjdk | 1:25.0.3.0.9-1.el10_1 | RLSA-2026:9693 |
| Rocky Linux 9 | giflib | 5.2.1-10.el9_8.2 | RLSA-2026:33501 |
| Rocky Linux 8 | giflib | 5.1.4-5.el8_10 | RLSA-2026:33503 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | giflib | 5.2.2-150000.4.22.1 | SUSE-SU-2026:2666-1 |
| SLES 15 SP6 | giflib | 5.2.2-150000.4.22.1 | SUSE-SU-2026:2666-1 |
| SLES 15 SP5 | giflib | 5.2.2-150000.4.22.1 | SUSE-SU-2026:2666-1 |
| SLES 15 SP4 | giflib | 5.2.2-150000.4.22.1 | SUSE-SU-2026:2666-1 |
| SLES 12 SP5 | giflib | 5.0.6-13.15.1 | SUSE-SU-2026:2667-1 |
Show 7 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | giflib | 5.2.2-160000.4.1 | SUSE-SU-2026:22382-1 |
| SLES for SAP 15 SP6 | giflib | 5.2.2-150000.4.22.1 | SUSE-SU-2026:2666-1 |
| SLES for SAP 15 SP5 | giflib | 5.2.2-150000.4.22.1 | SUSE-SU-2026:2666-1 |
| SLES for SAP 15 SP4 | giflib | 5.2.2-150000.4.22.1 | SUSE-SU-2026:2666-1 |
| SLES 16.0 | giflib | 5.2.2-160000.4.1 | SUSE-SU-2026:22382-1 |
| SLE HPC 15 SP5 | giflib | 5.2.2-150000.4.22.1 | SUSE-SU-2026:2666-1 |
| SLE HPC 15 SP4 | giflib | 5.2.2-150000.4.22.1 | SUSE-SU-2026:2666-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | giflib | 5.2.2-4.1 | openSUSE-SU-2026:11117-1 |
| openSUSE Leap 16.0 | giflib | 5.2.2-160000.4.1 | openSUSE-SU-2026:21076-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | giflib | 5.2.2-r2 | — |
| Alpine v3.23 | giflib | 5.2.2-r2 | — |
| Alpine v3.22 | giflib | 5.2.2-r2 | — |
| Alpine v3.21 | giflib | 5.2.2-r2 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | giflib +2 | 5.2.1-9.amzn2023.0.4 | ALAS2023-2026-1883 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 10 | giflib +1 | 5.2.1-25.el10_2 | ELSA-2026-33502 |
| Oracle Linux 9 | giflib +1 | 5.2.1-10.el9_8.2 | ELSA-2026-33501 |
| Oracle Linux 9 | java-25-openjdk +25 | 1:25.0.3.0.9-1.0.1.el10_2 | ELSA-2026-9693 |
| Oracle Linux 8 | giflib +1 | 5.1.4-5.el8_10 | ELSA-2026-33503 |
Advisories 37
- ALSA-2026:33501 Important: giflib security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:9693 Important: java-25-openjdk security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:33502 Important: giflib security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:9686 Important: java-17-openjdk security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:9689 Important: java-21-openjdk security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:9683 Important: java-1.8.0-openjdk security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:33503 Important: giflib security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2026:9693 Red Hat Security Advisory: java-25-openjdk security update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:9689 Red Hat Security Advisory: java-21-openjdk security update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:9686 Red Hat Security Advisory: java-17-openjdk security update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:9683 Red Hat Security Advisory: java-1.8.0-openjdk security update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:33509 Red Hat Security Advisory: giflib security update Red Hat Security Advisories (RHSA) · Oct 2, 2026
- RHSA-2026:33503 Red Hat Security Advisory: giflib security update Red Hat Security Advisories (RHSA) · Oct 2, 2026
- RHSA-2026:33501 Red Hat Security Advisory: giflib security update Red Hat Security Advisories (RHSA) · Oct 2, 2026
- RHSA-2026:33502 Red Hat Security Advisory: giflib security update Red Hat Security Advisories (RHSA) · Oct 2, 2026
- RHSA-2026:33455 Red Hat Security Advisory: giflib security update Red Hat Security Advisories (RHSA) · Oct 2, 2026
- RHSA-2026:33456 Red Hat Security Advisory: giflib security update Red Hat Security Advisories (RHSA) · Oct 2, 2026
- RHSA-2026:33452 Red Hat Security Advisory: giflib security update Red Hat Security Advisories (RHSA) · Oct 2, 2026
- RHSA-2026:33450 Red Hat Security Advisory: giflib security update Red Hat Security Advisories (RHSA) · Oct 2, 2026
- RHSA-2026:33451 Red Hat Security Advisory: giflib security update Red Hat Security Advisories (RHSA) · Oct 2, 2026
- RHSA-2026:33447 Red Hat Security Advisory: giflib security update Red Hat Security Advisories (RHSA) · Oct 2, 2026
- WID-SEC-2026-2137 Red Hat Enterprise Linux (giflib): Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · Jul 22, 2026
- USN-8583-1 giflib vulnerabilities Ubuntu Security Notices (USN) · Jul 22, 2026
- ELSA-2026-33502 Important: giflib security update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · Jul 16, 2026
- RLSA-2026:33502 Important: giflib security update Rocky Linux Security Advisories · Jul 5, 2026
- SUSE-SU-2026:22382-1 Security update for giflib SUSE / openSUSE Security Updates · Jul 2, 2026
- RLSA-2026:33501 Important: giflib security update Rocky Linux Security Advisories · Jul 1, 2026
- RLSA-2026:33503 Important: giflib security update Rocky Linux Security Advisories · Jul 1, 2026
- ELSA-2026-33501 Important: giflib security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Jul 1, 2026
- openSUSE-SU-2026:21076-1 Security update for giflib SUSE / openSUSE Security Updates · Jun 30, 2026
- ELSA-2026-33503 Important: giflib security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Jun 30, 2026
- SUSE-SU-2026:2666-1 Security update for giflib SUSE / openSUSE Security Updates · Jun 27, 2026
- SUSE-SU-2026:2667-1 Security update for giflib SUSE / openSUSE Security Updates · Jun 27, 2026
- openSUSE-SU-2026:11117-1 giflib-devel-32bit-5.2.2-4.1 on GA media SUSE / openSUSE Security Updates · Jun 26, 2026
- ALAS2023-2026-1883 Moderate: giflib security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Jun 22, 2026
- RLSA-2026:9693 Important: java-25-openjdk security update Rocky Linux Security Advisories · May 21, 2026
- ELSA-2026-9693 Important: java-25-openjdk security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Apr 23, 2026