CVE-2016-4658 Information

Description

xpointer.c in libxml2 before 2.9.5 (as used in Apple iOS before 10 OS X before 10.12 tvOS before 10 and watchOS before 3 and other products) does not forbid namespace nodes in XPointer ranges which allows remote attackers to execute arbitrary code or cause a denial of service (use-after-free and memory corruption) via a crafted XML document.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.html http://lists.apple.com/archives/security-announce/2016/Sep/msg00008.html http://lists.apple.com/archives/security-announce/2016/Sep/msg00010.html http://lists.apple.com/archives/security-announce/2016/Sep/msg00011.html http://www.securityfocus.com/bid/93054 http://www.securitytracker.com/id/1036858 http://www.securitytracker.com/id/1038623 https://git.gnome.org/browse/libxml2/commit/?id=c1d1f7121194036608bf555f08d3062a36fd344b https://security.gentoo.org/glsa/201701-37 https://support.apple.com/HT207141 https://support.apple.com/HT207142 https://support.apple.com/HT207143 https://support.apple.com/HT207170

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8