CVE-2019-10216

Name	CVE-2019-10216
Description	In ghostscript before version 9.50, the .buildfont1 procedure did not properly secure its privileged calls, enabling scripts to bypass `-dSAFER` restrictions. An attacker could abuse this flaw by creating a specially crafted PostScript file that could escalate privileges and access files outside of restricted areas.
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-1880-1, DSA-4499-1
NVD severity	medium
Debian Bugs	934638

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
ghostscript (PTS)	stretch	9.26a~dfsg-0+deb9u6	fixed
	stretch (security)	9.26a~dfsg-0+deb9u7	fixed
	buster, buster (security)	9.27~dfsg-2+deb10u4	fixed
	bullseye, sid	9.53.3~dfsg-6	fixed

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

Package	Type	Release	Fixed Version	Origin	Debian Bugs
ghostscript	source	jessie	9.26a~dfsg-0+deb8u4	DLA-1880-1
ghostscript	source	stretch	9.26a~dfsg-0+deb9u4	DSA-4499-1
ghostscript	source	buster	9.27~dfsg-2+deb10u1	DSA-4499-1
ghostscript	source	(unstable)	9.27~dfsg-3.1		934638

Notes

https://www.openwall.com/lists/oss-security/2019/08/12/4
https://bugs.ghostscript.com/show_bug.cgi?id=701394
https://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=5b85ddd19