CVE-2016-1834

Heap-based buffer overflow in the xmlStrncat 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.

• CWE-119
• CWE-122

• http://lists.apple.com/archives/security-announce/2016/May/msg00001.htmlMailing List, Vendor Advisory
• http://lists.apple.com/archives/security-announce/2016/May/msg00002.htmlMailing List, Vendor Advisory
• http://lists.apple.com/archives/security-announce/2016/May/msg00003.htmlMailing List, Vendor Advisory
• http://lists.apple.com/archives/security-announce/2016/May/msg00004.htmlMailing List, Vendor Advisory
• http://rhn.redhat.com/errata/RHSA-2016-2957.htmlThird Party Advisory
• http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.htmlThird Party Advisory
• http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.htmlThird Party Advisory
• http://www.securityfocus.com/bid/90691Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1035890Third Party Advisory, VDB Entry
• http://www.ubuntu.com/usn/USN-2994-1Third Party Advisory
• http://xmlsoft.org/news.htmlRelease Notes, Vendor Advisory
• https://access.redhat.com/errata/RHSA-2016:1292Third Party Advisory
• https://bugzilla.gnome.org/show_bug.cgi?id=763071Exploit, Issue Tracking, Third Party Advisory
• https://git.gnome.org/browse/libxml2/commit/?id=8fbbf5513d609c1770b391b99e33314cd0742704Patch, Third Party Advisory
• https://kc.mcafee.com/corporate/index?page=content&id=SB10170Patch, Third Party Advisory
• https://support.apple.com/HT206564Vendor Advisory
• https://support.apple.com/HT206566Vendor Advisory
• https://support.apple.com/HT206567Vendor Advisory
• https://support.apple.com/HT206568Vendor Advisory
• https://www.debian.org/security/2016/dsa-3593Third Party Advisory
• https://www.tenable.com/security/tns-2016-18Third Party Advisory
• http://lists.apple.com/archives/security-announce/2016/May/msg00001.htmlMailing List, Vendor Advisory
• http://lists.apple.com/archives/security-announce/2016/May/msg00002.htmlMailing List, Vendor Advisory
• http://lists.apple.com/archives/security-announce/2016/May/msg00003.htmlMailing List, Vendor Advisory
• http://lists.apple.com/archives/security-announce/2016/May/msg00004.htmlMailing List, Vendor Advisory
• http://rhn.redhat.com/errata/RHSA-2016-2957.htmlThird Party Advisory
• http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.htmlThird Party Advisory
• http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.htmlThird Party Advisory
• http://www.securityfocus.com/bid/90691Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1035890Third Party Advisory, VDB Entry
• http://www.ubuntu.com/usn/USN-2994-1Third Party Advisory
• http://xmlsoft.org/news.htmlRelease Notes, Vendor Advisory
• https://access.redhat.com/errata/RHSA-2016:1292Third Party Advisory
• https://bugzilla.gnome.org/show_bug.cgi?id=763071Exploit, Issue Tracking, Third Party Advisory
• https://git.gnome.org/browse/libxml2/commit/?id=8fbbf5513d609c1770b391b99e33314cd0742704Patch, Third Party Advisory
• https://kc.mcafee.com/corporate/index?page=content&id=SB10170Patch, Third Party Advisory
• https://support.apple.com/HT206564Vendor Advisory
• https://support.apple.com/HT206566Vendor Advisory
• https://support.apple.com/HT206567Vendor Advisory
• https://support.apple.com/HT206568Vendor Advisory
• https://www.debian.org/security/2016/dsa-3593Third Party Advisory
• https://www.tenable.com/security/tns-2016-18Third Party Advisory

Published

May 20, 2016

Last Modified

Jun 17, 2026

Status

Modified