CVE-2012-1148
Memory leak in the poolGrow function in expat/lib/xmlparse.c in expat before 2.1.0 allows context-dependent attackers to cause a denial of service (memory consumption) via a large number of crafted XML files that cause improperly-handled reallocation failures when expanding entities.
Date published : 2012-07-03
http://lists.apple.com/archives/security-announce/2015/Dec/msg00005.html