Heap-based buffer overflow in the xmlFAParsePosCharGroup function 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, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted XML document.
http://lists.apple.com/archives/security-announce/2016/May/msg00001.html
http://lists.apple.com/archives/security-announce/2016/May/msg00002.html
http://lists.apple.com/archives/security-announce/2016/May/msg00003.html
http://lists.apple.com/archives/security-announce/2016/May/msg00004.html
http://rhn.redhat.com/errata/RHSA-2016-2957.html
http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
http://www.securityfocus.com/bid/90691
http://www.securitytracker.com/id/1035890
http://www.ubuntu.com/usn/USN-2994-1
https://access.redhat.com/errata/RHSA-2016:1292
https://bugzilla.gnome.org/show_bug.cgi?id=757711
https://git.gnome.org/browse/libxml2/commit/?id=cbb271655cadeb8dbb258a64701d9a3a0c4835b4
https://kc.mcafee.com/corporate/index?page=content&id=SB10170
https://security.gentoo.org/glsa/201701-37
https://support.apple.com/HT206564
https://support.apple.com/HT206566
https://support.apple.com/HT206567
https://support.apple.com/HT206568
Source: MITRE
Published: 2016-05-20
Updated: 2019-03-25
Type: CWE-119
Base Score: 6.8
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P
Impact Score: 6.4
Exploitability Score: 8.6
Severity: MEDIUM
Base Score: 7.8
Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 1.8
Severity: HIGH