| Name | CVE-2016-5766 |
| Description | Integer overflow in the _gd2GetHeader function in gd_gd2.c in the GD Graphics Library (aka libgd) before 2.2.3, as used in PHP before 5.5.37, 5.6.x before 5.6.23, and 7.x before 7.0.8, allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via crafted chunk dimensions in an image. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-534-1, DSA-3619-1 |
| Debian Bugs | 829014 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| libgd2 (PTS) | jessie, jessie (lts) | 2.1.0-5+deb8u15 | fixed |
| stretch (security) | 2.2.4-2+deb9u4 | fixed |
| stretch (lts), stretch | 2.2.4-2+deb9u6 | fixed |
| buster (security), buster, buster (lts) | 2.2.5-5.2+deb10u1 | fixed |
| bullseye | 2.3.0-2 | fixed |
| bookworm | 2.3.3-9 | fixed |
| sid, trixie | 2.3.3-12 | fixed |
| php5 (PTS) | jessie, jessie (lts) | 5.6.40+dfsg-0+deb8u21 | fixed |
| php7.0 (PTS) | stretch (security) | 7.0.33-0+deb9u12 | fixed |
| stretch (lts), stretch | 7.0.33-0+deb9u19 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| libgd2 | source | wheezy | 2.0.36~rc1~dfsg-6.1+deb7u4 | | DLA-534-1 | |
| libgd2 | source | jessie | 2.1.0-5+deb8u4 | | DSA-3619-1 | |
| libgd2 | source | (unstable) | 2.2.2-29-g3c2b605-1 | | | 829014 |
| php5 | source | jessie | 5.6.23+dfsg-0+deb8u1 | | | |
| php5 | source | (unstable) | 5.6.23+dfsg-1 | unimportant | | |
| php7.0 | source | (unstable) | 7.0.8-1 | unimportant | | |
Notes
Starting with 5.4.0-1 Debian uses the system copy of libgd
PHP Bug: https://bugs.php.net/bug.php?id=72339
https://git.php.net/?p=php-src.git;a=commitdiff;h=7722455726bec8c53458a32851d2a87982cf0eac
Fixed in 5.5.37, 5.6.23, 7.0.8
https://github.com/libgd/libgd/issues/243
https://github.com/libgd/libgd/commit/aba3db8ba159465ecec1089027a24835a6da9cc0