Description
Integer underflow in the _gdContributionsAlloc function in gd_interpolation.c in the GD Graphics Library (aka libgd) before 2.2.4 allows remote attackers to have unspecified impact via vectors related to decrementing the u variable.
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 | 2.2.4-1 | — |
| Debian 13 | libgd2 | 2.2.4-1 | — |
| Debian 12 | libgd2 | 2.2.4-1 | — |
| Debian 8 | libgd2 | 2.1.0-5+deb8u9 | DSA-3777-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | libgd2 | 2.1.1-4ubuntu0.16.04.6 | USN-3213-1 |
| Ubuntu 14.04 LTS | libgd2 | 2.1.0-3ubuntu0.6 | USN-3213-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 3 | rh-php71-php +27 | 7.1.30-1.el7 | RHSA-2019:2519 |
| RHEL 3 | rh-php72-php +27 | 7.2.24-1.el7 | RHSA-2019:3299 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP2 | gd | 2.1.0-23.1 | SUSE-SU-2017:0468-1 |
| SLES 12 SP2 | php5 | 5.5.14-96.1 | SUSE-SU-2017:0556-1 |
| SLES 12 SP2 | php7 | 7.0.7-35.1 | SUSE-SU-2017:0534-1 |
| SLES 12 SP1 | gd | 2.1.0-23.1 | SUSE-SU-2017:0468-1 |
| SLES 12 SP1 | php5 | 5.5.14-96.1 | SUSE-SU-2017:0556-1 |
| SLES 12 SP1 | php7 | 7.0.7-35.1 | SUSE-SU-2017:0534-1 |
| SLES 12 | php5 | 5.5.14-96.1 | SUSE-SU-2017:0556-1 |
| SLES 12 | php7 | 7.0.7-35.1 | SUSE-SU-2017:0534-1 |
| SLES 11 SP4 | php53 | 5.3.17-101.1 | SUSE-SU-2017:0568-1 |
| SLES 11 SP3 | php53 | 5.3.17-101.1 | SUSE-SU-2017:0568-1 |
Show 7 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP2 | gd | 2.1.0-23.1 | SUSE-SU-2017:0468-1 |
| SLES for SAP 12 SP1 | gd | 2.1.0-23.1 | SUSE-SU-2017:0468-1 |
| SLES for SAP 11 SP4 | php53 | 5.3.17-101.1 | SUSE-SU-2017:0568-1 |
| SUSE OpenStack Cloud 5 | php53 | 5.3.17-101.1 | SUSE-SU-2017:0568-1 |
| SUSE Manager Proxy 2.1 | php53 | 5.3.17-101.1 | SUSE-SU-2017:0568-1 |
| SUSE Manager 2.1 | php53 | 5.3.17-101.1 | SUSE-SU-2017:0568-1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | php53 | 5.3.17-101.1 | SUSE-SU-2017:0568-1 |
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 v3.7 | php7 | 7.1.29-r0 | — |
| Alpine v3.5 | gd | 2.2.4-r0 | — |
| Alpine v3.5 | php5 | 5.6.40-r0 | — |
| Alpine v3.4 | gd | 2.2.4-r0 | — |
| Alpine v3.3 | gd | 2.2.4-r0 | — |
Advisories 9
- RHSA-2019:3299 Red Hat Security Advisory: rh-php72-php security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2019:2519 Red Hat Security Advisory: rh-php71-php security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- USN-3213-1 libgd2 vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-3777-1 libgd2 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2017:0534-1 Security update for php7 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:0468-1 Security update for gd SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:0568-1 Security update for php53 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:0556-1 Security update for php5 SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10777-1 gd-2.3.3-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
References
- [oss-security] 20170126 CVE Requests: libgd: potential unsigned onderflow, denial-of-service in gdImageCreateFromGd2Ctx and signed overflow in gd_io.c mailing-list
- [oss-security] 20170128 Re: CVE Requests: libgd: potential unsigned onderflow, denial-of-service in gdImageCreateFromGd2Ctx and signed overflow in gd_io.c mailing-list
- http://libgd.github.io/release-2.2.4.html
- https://github.com/libgd/libgd/commit/60bfb401ad5a4a8ae995dcd36372fe15c71e1a35
- DSA-3777 vendor-advisory
- 95869 vdb-entry
- RHSA-2019:2519 vendor-advisory
- RHSA-2019:3299 vendor-advisory