CVE-2016-6318

Name	CVE-2016-6318
Description	Stack-based buffer overflow in the FascistGecosUser function in lib/fascist.c in cracklib allows local users to cause a denial of service (application crash) or gain privileges via a long GECOS field, involving longbuffer.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
References	DLA-2220-1, DLA-599-1
NVD severity	high
Debian Bugs	834502

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
cracklib2 (PTS)	stretch	2.9.2-5	fixed
	buster	2.9.6-2	fixed
	bookworm, sid, bullseye	2.9.6-3.4	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Origin	Debian Bugs
cracklib2	source	wheezy	2.8.19-3+deb7u1	DLA-599-1
cracklib2	source	jessie	2.9.2-1+deb8u1	DLA-2220-1
cracklib2	source	(unstable)	2.9.2-2		834502

https://bugzilla.redhat.com/attachment.cgi?id=1188599
In Debian compiled with CPPFLAGS="-D_FORTIFY_SOURCE=2" so, at most application crash