[SECURITY] [DLA 2049-1] imagemagick security update

Package : imagemagick
Version : 8:6.8.9.9-5+deb8u19
CVE ID : CVE-2019-19948 CVE-2019-19949
Debian Bug : 947309 947308

Multiple vulnerabilities have been found in imagemagick, an image processing
toolkit.

CVE-2019-19948

Heap-buffer-overflow in WriteSGIImage (coders/sgi.c) caused by insufficient
validation of row and column sizes. This vulnerability might be leveraged by
remote attackers to cause denial of service or any other unspecified impact
via crafted image data.

CVE-2019-19949

Heap-based buffer over-read (off-by-one) in WritePNGImage (coders/png.c)
caused by missing length check prior pointer dereference. This vulnerability
might be leveraged by remote attackers to cause denial of service via
crafted image data.

For Debian 8 "Jessie", these problems have been fixed in version
8:6.8.9.9-5+deb8u19.

We recommend that you upgrade your imagemagick 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