Ghostscript 8.71 and earlier reads initialization files from the current working directory, which allows local users to execute arbitrary PostScript commands via a Trojan horse file, related to improper support for the -P- option to the gs program, as demonstrated using gs_init.ps, a different vulnerability than CVE-2010-4820.
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=583183
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=583316
http://bugs.ghostscript.com/show_bug.cgi?id=691339
http://bugs.ghostscript.com/show_bug.cgi?id=691350
http://lists.fedoraproject.org/pipermail/package-announce/2010-July/043913.html
http://lists.fedoraproject.org/pipermail/package-announce/2010-July/043948.html
http://lists.opensuse.org/opensuse-security-announce/2010-08/msg00001.html
http://savannah.gnu.org/forum/forum.php?forum_id=6368
http://secunia.com/advisories/40452
http://secunia.com/advisories/40475
http://secunia.com/advisories/40532
http://security.gentoo.org/glsa/glsa-201412-17.xml
http://www.securityfocus.com/archive/1/511433
http://www.securityfocus.com/archive/1/511472
http://www.securityfocus.com/archive/1/511474
http://www.securityfocus.com/archive/1/511476
http://www.vupen.com/english/advisories/2010/1757
https://bugzilla.novell.com/show_bug.cgi?id=608071