CVE-2016-5766

NameCVE-2016-5766
DescriptionInteger 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-534-1, DSA-3619-1
NVD severitymedium (attack range: remote)
Debian Bugs829014

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libgd2 (PTS)wheezy2.0.36~rc1~dfsg-6.1+deb7u2vulnerable
wheezy (security)2.0.36~rc1~dfsg-6.1+deb7u10fixed
jessie2.1.0-5+deb8u9fixed
jessie (security)2.1.0-5+deb8u11fixed
stretch (security), stretch2.2.4-2+deb9u2fixed
buster2.2.5-3fixed
sid2.2.5-4fixed
php5 (PTS)wheezy5.4.45-0+deb7u2vulnerable
wheezy (security)5.4.45-0+deb7u11vulnerable
jessie (security), jessie5.6.30+dfsg-0+deb8u1fixed
php7.0 (PTS)stretch7.0.19-1fixed
buster, sid7.0.22-3fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libgd2source(unstable)2.2.2-29-g3c2b605-1medium829014
libgd2sourcejessie2.1.0-5+deb8u4mediumDSA-3619-1
libgd2sourcewheezy2.0.36~rc1~dfsg-6.1+deb7u4mediumDLA-534-1
php5source(unstable)5.6.23+dfsg-1unimportant
php5sourcejessie5.6.23+dfsg-0+deb8u1medium
php7.0source(unstable)7.0.8-1unimportant

Notes

Starting with 5.4.0-1 Debian uses the system copy of libgd
PHP Bug: https://bugs.php.net/bug.php?id=72339
http://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

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