A libpgf security update has been released for Debian GNU/Linux 8 LTS

Package : libpgf
Version : 6.14.12-3+deb8u1
CVE ID : CVE-2015-6673

An issue has been found in libpgf, a library to handle Progressive
Graphics File (PGF).

Due to lack of validation of ColorTableSize, a use-after-free issue might
appear in Decoder.cpp

For Debian 8 "Jessie", this problem has been fixed in version
6.14.12-3+deb8u1.

We recommend that you upgrade your libpgf 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