libgd2 -- security update

2017-08-12T00:00:00
ID DSA-3938
Type debian
Reporter Debian
Modified 2017-08-12T00:00:00

Description

Matviy Kotoniy reported that the gdImageCreateFromGifCtx() function used to load images from GIF format files in libgd2, a library for programmatic graphics creation and manipulation, does not zero stack allocated color map buffers before their use, which may result in information disclosure if a specially crafted file is processed.

For the oldstable distribution (jessie), this problem has been fixed in version 2.1.0-5+deb8u10.

For the stable distribution (stretch), this problem has been fixed in version 2.2.4-2+deb9u1.

We recommend that you upgrade your libgd2 packages.