A gdk-pixbuf regression update has been released for Debian GNU/Linux 7 Extended LTS

Package : gdk-pixbuf
Version : 2.31.1-2+deb8u9

While preparing a fix for CVE-2017-6314 an unknown symbol
g_uint_checked_mul() was introduced.

For Debian 8 "Jessie", this problem has been fixed in version
2.31.1-2+deb8u9.

We recommend that you upgrade your gdk-pixbuf 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