[SECURITY] [DLA 1963-1] poppler security update

Package : poppler
Version : 0.26.5-2+deb8u12
CVE ID : CVE-2019-9959 CVE-2019-10871

Two buffer allocation issues were identified in poppler.

CVE-2019-9959

An unexpected negative length value can cause an integer
overflow, which in turn making it possible to allocate a large
memory chunk on the heap with size controlled by an attacker.

CVE-2019-10871

The RGB data are considered CMYK data and hence it reads 4 bytes
instead of 3 bytes at the end of the image. The fixed version
defines SPLASH_CMYK which is the upstream recommended solution.

For Debian 8 "Jessie", these problems have been fixed in version
0.26.5-2+deb8u12.

We recommend that you upgrade your poppler 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