Debian Long Term Support / LTS Security Information / 2019 / Security Information -- DLA-1651-1 libgd2

Debian Security Advisory

DLA-1651-1 libgd2 -- LTS security update

Date Reported:

30 Jan 2019

Affected Packages:

libgd2

Vulnerable:

Yes

Security database references:

In Mitre's CVE dictionary: CVE-2018-5711, CVE-2018-1000222, CVE-2019-6977, CVE-2019-6978.

More information:

Several issues in libgd2, a graphics library that allows to quickly draw images, have been found.

• CVE-2019-6977

  A potential double free in gdImage*Ptr() has been reported by Solmaz Salimi (aka. Rooney).

• CVE-2019-6978

  Simon Scannell found a heap-based buffer overflow, exploitable with crafted image data.

• CVE-2018-1000222

  A new double free vulnerabilities in gdImageBmpPtr() has been reported by Solmaz Salimi (aka. Rooney).

• CVE-2018-5711

  Due to an integer signedness error the GIF core parsing function can enter an infinite loop. This will lead to a Denial of Service and exhausted server resources.

For Debian 8 Jessie, these problems have been fixed in version 2.1.0-5+deb8u12.

We recommend that you upgrade your libgd2 packages.

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS