CVE-2016-7979

Name	CVE-2016-7979
Description	Ghostscript before 9.21 might allow remote attackers to bypass the SAFER mode protection mechanism and consequently execute arbitrary code by leveraging type confusion in .initialize_dsc_parser.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-674-1, DSA-3691-1
Debian Bugs	839846

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
ghostscript (PTS)	bullseye	9.53.3~dfsg-7+deb11u7	fixed
	bullseye (security)	9.53.3~dfsg-7+deb11u11	fixed
	bookworm	10.0.0~dfsg-11+deb12u7	fixed
	bookworm (security)	10.0.0~dfsg-11+deb12u8	fixed
	trixie	10.05.1~dfsg-1	fixed
	trixie (security)	10.05.1~dfsg-1+deb13u1	fixed
	forky	10.05.1~dfsg-3	fixed
	sid	10.06.0~dfsg-3	fixed

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

Package	Type	Release	Fixed Version	Origin	Debian Bugs
ghostscript	source	wheezy	9.05~dfsg-6.3+deb7u3	DLA-674-1
ghostscript	source	jessie	9.06~dfsg-2+deb8u3	DSA-3691-1
ghostscript	source	(unstable)	9.19~dfsg-3.1		839846

Notes

Upstream bug: http://bugs.ghostscript.com/show_bug.cgi?id=697190
Reproducer: http://bugs.ghostscript.com/show_bug.cgi?id=697190#c0
Patch: https://git.ghostscript.com/?p=ghostpdl.git;h=875a0095f37626a721c7ff57d606a0f95af03913
https://www.openwall.com/lists/oss-security/2016/10/05/7
https://www.openwall.com/lists/oss-security/2016/10/05/19