Description
gd_interpolation.c in the GD Graphics Library (aka libgd) before 2.1.1, as used in PHP before 5.5.36, 5.6.x before 5.6.22, and 7.x before 7.0.7, allows remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via a crafted image that is mishandled by the imagescale function.
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 | 2.1.1-1 | — |
| Debian 13 | libgd2 | 2.1.1-1 | — |
| Debian 12 | libgd2 | 2.1.1-1 | — |
| Debian 8 | libgd2 | 2.1.0-5+deb8u3 | DSA-3587-1 |
| Debian 8 | php5 | 5.6.22+dfsg-0+deb8u1 | DSA-3602-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | libgd2 | 2.1.1-4ubuntu0.16.04.2 | USN-3030-1 |
| Ubuntu 14.04 LTS | libgd2 | 2.1.0-3ubuntu0.2 | USN-3030-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 2 | rh-php56 +2 | 2.3-1.el6 | RHSA-2016:2750 |
| RHEL 2 | rh-php56-php +27 | 5.6.25-1.el6 | RHSA-2016:2750 |
| RHEL 2 | rh-php56-php-pear | 1:1.9.5-4.el6 | RHSA-2016:2750 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP1 | imap | 2007e_suse-19.1 | SUSE-SU-2016:1633-1 |
| SLES 12 SP1 | php5 | 5.5.14-64.5 | SUSE-SU-2016:1633-1 |
| SLES 12 | imap | 2007e_suse-19.1 | SUSE-SU-2016:1633-1 |
| SLES 12 | php5 | 5.5.14-64.5 | SUSE-SU-2016:1633-1 |
Advisories 5
- RHSA-2016:2750 Red Hat Security Advisory: rh-php56 security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Aug 5, 2026
- USN-3030-1 libgd2 vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-3587-1 libgd2 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-3602-1 php5 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2016:1633-1 Security update for php5 SUSE / openSUSE Security Updates · Feb 4, 2026
References
- 90859 vdb-entry
- [oss-security] 20160526 Re: Fwd: CVE for PHP 5.5.36 issues mailing-list
- https://bugs.php.net/bug.php?id=72227
- RHSA-2016:2750 vendor-advisory
- DSA-3602 vendor-advisory
- https://github.com/php/php-src/commit/7a1aac3343af85b4af4df5f8844946eaa27394ab?w=1
- https://github.com/libgd/libgd/commit/4f65a3e4eedaffa1efcf9ee1eb08f0b504fbc31a
- http://php.net/ChangeLog-5.php
- http://php.net/ChangeLog-7.php
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731
- DSA-3587 vendor-advisory
- USN-3030-1 vendor-advisory