A cracklib2 security update has been released for Debian GNU/Linux 8 LTS to address a stack-based buffer overflow when parsing large GECOS fields in cracklib2

DLA 2220-1: cracklib2 security update

Package : cracklib2
Version : 2.9.2-1+deb8u1
CVE ID : CVE-2016-6318

It was discovered that there was a stack-based buffer overflow when
parsing large GECOS fields in cracklib2, a pro-active password checker
library.

For Debian 8 "Jessie", this problem has been fixed in version
2.9.2-1+deb8u1.

We recommend that you upgrade your cracklib2 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