Description
Double free vulnerability in the gdImagePngPtr function in libgd2 before 2.2.5 allows remote attackers to cause a denial of service via vectors related to a palette with no colors.
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 | libgd2 | 2.2.5-1 | — |
| Debian 13 | libgd2 | 2.2.5-1 | — |
| Debian 12 | libgd2 | 2.2.5-1 | — |
| Debian 9 | libgd2 | 2.2.4-2+deb9u2 | DSA-3961-1 |
| Debian 8 | libgd2 | 2.1.0-5+deb8u11 | DSA-3961-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 7 | libgd2 | 2.0.36~rc1~dfsg-6.1+deb7u10 | DLA-1106-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | libgd2 | 2.1.1-4ubuntu0.16.04.8 | USN-3410-1 |
| Ubuntu 14.04 LTS | libgd2 | 2.1.0-3ubuntu0.8 | USN-3410-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP3 | gd | 2.1.0-24.3.4 | SUSE-SU-2018:0135-1 |
| SLES 12 SP2 | gd | 2.1.0-24.3.4 | SUSE-SU-2018:0135-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP3 | gd | 2.1.0-24.3.4 | SUSE-SU-2018:0135-1 |
| SLES for SAP 12 SP2 | gd | 2.1.0-24.3.4 | SUSE-SU-2018:0135-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | gd | 2.3.3-1.1 | openSUSE-SU-2024:10777-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.6 | gd | 2.2.5-r0 | — |
| Alpine v3.5 | gd | 2.2.5-r0 | — |
| Alpine v3.4 | gd | 2.2.5-r0 | — |
Advisories 5
- USN-3410-1 libgd2 vulnerability Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-3961-1 libgd2 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1106-1 libgd2 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10777-1 gd-2.3.3-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:0135-1 Security update for gd SUSE / openSUSE Security Updates · Feb 4, 2026
References
- https://github.com/libgd/libgd/releases/tag/gd-2.2.5
- https://github.com/libgd/libgd/issues/381
- FEDORA-2017-7cc0e6a5f5 vendor-advisory
- DSA-3961 vendor-advisory