Multiple use-after-free vulnerabilities in the (1) htmlPArsePubidLiteral and (2) htmlParseSystemiteral functions in libxml2 before 2.9.4, as used in Apple iOS before 9.3.2, OS X before 10.11.5, tvOS before 9.2.1, and watchOS before 2.2.1, allow remote attackers to cause a denial of service via a crafted XML document.
lists.apple.com/archives/security-announce/2016/May/msg00001.html
lists.apple.com/archives/security-announce/2016/May/msg00002.html
lists.apple.com/archives/security-announce/2016/May/msg00003.html
lists.apple.com/archives/security-announce/2016/May/msg00004.html
rhn.redhat.com/errata/RHSA-2016-2957.html
www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html
www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
www.securityfocus.com/bid/90691
www.securitytracker.com/id/1035890
www.ubuntu.com/usn/USN-2994-1
xmlsoft.org/news.html
access.redhat.com/errata/RHSA-2016:1292
bugzilla.gnome.org/show_bug.cgi?id=760263
git.gnome.org/browse/libxml2/commit/?id=11ed4a7a90d5ce156a18980a4ad4e53e77384852
kc.mcafee.com/corporate/index?page=content&id=SB10170
support.apple.com/HT206564
support.apple.com/HT206566
support.apple.com/HT206567
support.apple.com/HT206568
www.debian.org/security/2016/dsa-3593
www.tenable.com/security/tns-2016-18