Security Information / 2017 / Security Information -- DSA-3938-1 libgd2

Debian Security Advisory

DSA-3938-1 libgd2 -- security update

Date Reported:

12 Aug 2017

Affected Packages:

libgd2

Vulnerable:

Yes

Security database references:

In the Debian bugtracking system: Bug 869263.
In Mitre's CVE dictionary: CVE-2017-7890.

More information:

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.