t1lib 5.1.2 and earlier, as used in Xpdf before 3.02pl6, teTeX, and other products, reads from invalid memory locations, which allows remote attackers to cause a denial of service (application crash) via a crafted Type 1 font in a PDF document, a different vulnerability than CVE-2011-0764.
https://security.gentoo.org/glsa/201701-57
http://www.vupen.com/english/advisories/2011/0728
http://www.toucan-system.com/advisories/tssa-2011-01.txt
http://www.securityfocus.com/archive/1/517205/100/0/threaded
http://www.mandriva.com/security/advisories?name=MDVSA-2012:144
http://www.kb.cert.org/vuls/id/MAPG-8ECL8X
http://www.kb.cert.org/vuls/id/376500
http://www.foolabs.com/xpdf/download.html
http://securitytracker.com/id?1025266
http://securityreason.com/securityalert/8171
http://secunia.com/advisories/48985