CVE-2016-4658

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.

• CWE-119

• http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.htmlMailing List, Vendor Advisory
• http://lists.apple.com/archives/security-announce/2016/Sep/msg00008.htmlMailing List, Vendor Advisory
• http://lists.apple.com/archives/security-announce/2016/Sep/msg00010.htmlMailing List, Vendor Advisory
• http://lists.apple.com/archives/security-announce/2016/Sep/msg00011.htmlMailing List, Vendor Advisory
• http://www.securityfocus.com/bid/93054Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1036858Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1038623Third Party Advisory, VDB Entry
• https://git.gnome.org/browse/libxml2/commit/?id=c1d1f7121194036608bf555f08d3062a36fd344bPatch, Third Party Advisory
• https://security.gentoo.org/glsa/201701-37Third Party Advisory
• https://support.apple.com/HT207141Vendor Advisory
• https://support.apple.com/HT207142Vendor Advisory
• https://support.apple.com/HT207143Vendor Advisory
• https://support.apple.com/HT207170Vendor Advisory
• http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.htmlMailing List, Vendor Advisory
• http://lists.apple.com/archives/security-announce/2016/Sep/msg00008.htmlMailing List, Vendor Advisory
• http://lists.apple.com/archives/security-announce/2016/Sep/msg00010.htmlMailing List, Vendor Advisory
• http://lists.apple.com/archives/security-announce/2016/Sep/msg00011.htmlMailing List, Vendor Advisory
• http://www.securityfocus.com/bid/93054Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1036858Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1038623Third Party Advisory, VDB Entry
• https://git.gnome.org/browse/libxml2/commit/?id=c1d1f7121194036608bf555f08d3062a36fd344bPatch, Third Party Advisory
• https://security.gentoo.org/glsa/201701-37Third Party Advisory
• https://support.apple.com/HT207141Vendor Advisory
• https://support.apple.com/HT207142Vendor Advisory
• https://support.apple.com/HT207143Vendor Advisory
• https://support.apple.com/HT207170Vendor Advisory

Published

Sep 25, 2016

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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