The parse_encoding function in type1/t1load.c in FreeType before 2.5.3 allows remote attackers to cause a denial of service (infinite loop) via a "broken number-with-base" in a Postscript stream, as demonstrated by 8#garbage.
http://lists.opensuse.org/opensuse-updates/2015-10/msg00017.html
http://savannah.nongnu.org/bugs/index.php?41590
http://www.debian.org/security/2015/dsa-3370
http://www.securityfocus.com/bid/76727
http://www.securitytracker.com/id/1033536
http://www.ubuntu.com/usn/USN-2739-1
https://bugs.launchpad.net/ubuntu/+source/freetype/+bug/1492124