The xmlParseConditionalSections function in parser.c in libxml2 does not properly skip intermediary entities when it stops parsing invalid input, which allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) via crafted XML data, a different vulnerability than CVE-2015-7941.
lists.apple.com/archives/security-announce/2016/Mar/msg00000.html
lists.apple.com/archives/security-announce/2016/Mar/msg00001.html
lists.apple.com/archives/security-announce/2016/Mar/msg00002.html
lists.apple.com/archives/security-announce/2016/Mar/msg00004.html
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lists.fedoraproject.org/pipermail/package-announce/2016-February/177381.html
lists.opensuse.org/opensuse-updates/2015-12/msg00120.html
lists.opensuse.org/opensuse-updates/2016-01/msg00031.html
marc.info/?l=bugtraq&m=145382616617563&w=2
rhn.redhat.com/errata/RHSA-2015-2549.html
rhn.redhat.com/errata/RHSA-2015-2550.html
rhn.redhat.com/errata/RHSA-2016-1089.html
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www.openwall.com/lists/oss-security/2015/10/22/5
www.openwall.com/lists/oss-security/2015/10/22/8
www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
www.securityfocus.com/bid/79507
www.securitytracker.com/id/1034243
www.ubuntu.com/usn/USN-2812-1
xmlsoft.org/news.html
bugzilla.gnome.org/show_bug.cgi?id=744980#c8
bugzilla.gnome.org/show_bug.cgi?id=756456
h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04944172
security.gentoo.org/glsa/201701-37
support.apple.com/HT206166
support.apple.com/HT206167
support.apple.com/HT206168
support.apple.com/HT206169