| Name | CVE-2016-7568 |
| Description | Integer overflow in the gdImageWebpCtx function in gd_webp.c in the GD Graphics Library (aka libgd) through 2.2.3, as used in PHP through 7.0.11, allows remote attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via crafted imagewebp and imagedestroy calls. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-3693-1 |
| Debian Bugs | 839659 |
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 | (not affected) | | | |
| libgd2 | source | jessie | 2.1.0-5+deb8u7 | | DSA-3693-1 | |
| libgd2 | source | (unstable) | 2.2.3-87-gd0fec80-1 | | | 839659 |
| php5 | source | jessie | 5.6.27+dfsg-0+deb8u1 | | | |
| php5 | source | (unstable) | (unfixed) | unimportant | | |
| php7.0 | source | (unstable) | 7.0.12-1 | unimportant | | |
Notes
[wheezy] - libgd2 <not-affected> (Vulnerable code not present)
libgd bug: https://github.com/libgd/libgd/issues/308
Fixed by: https://github.com/libgd/libgd/commit/2806adfdc27a94d333199345394d7c302952b95f
PHP Bug: https://bugs.php.net/bug.php?id=73003
https://github.com/php/php-src/commit/c18263e0e0769faee96a5d0ee04b750c442783c6