{"id":"UBUNTU-CVE-2016-1838","details":"The xmlPArserPrintFileContextInternal 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 cause a denial of service (heap-based buffer over-read) via a crafted XML document.","modified":"2026-04-22T10:57:22.857022Z","published":"2016-05-20T00:00:00Z","related":["USN-2994-1"],"upstream":["CVE-2016-1838"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-1838"},{"type":"REPORT","url":"https://support.apple.com/HT206564"},{"type":"REPORT","url":"https://support.apple.com/HT206566"},{"type":"REPORT","url":"https://support.apple.com/HT206567"},{"type":"REPORT","url":"https://support.apple.com/HT206568"},{"type":"REPORT","url":"http://lists.apple.com/archives/security-announce/2016/May/msg00001.html"},{"type":"REPORT","url":"http://lists.apple.com/archives/security-announce/2016/May/msg00002.html"},{"type":"REPORT","url":"http://lists.apple.com/archives/security-announce/2016/May/msg00003.html"},{"type":"REPORT","url":"http://lists.apple.com/archives/security-announce/2016/May/msg00004.html"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-2994-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2016-1838"}],"affected":[{"package":{"name":"libxml2","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/libxml2@2.9.1+dfsg1-3ubuntu4.8?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.1+dfsg1-3ubuntu4.8"}]}],"versions":["2.9.1+dfsg1-3ubuntu2","2.9.1+dfsg1-3ubuntu3","2.9.1+dfsg1-3ubuntu4","2.9.1+dfsg1-3ubuntu4.1","2.9.1+dfsg1-3ubuntu4.2","2.9.1+dfsg1-3ubuntu4.3","2.9.1+dfsg1-3ubuntu4.4","2.9.1+dfsg1-3ubuntu4.5","2.9.1+dfsg1-3ubuntu4.6","2.9.1+dfsg1-3ubuntu4.7"],"ecosystem_specific":{"binaries":[{"binary_name":"libxml2","binary_version":"2.9.1+dfsg1-3ubuntu4.8"},{"binary_name":"libxml2-utils","binary_version":"2.9.1+dfsg1-3ubuntu4.8"},{"binary_name":"python-libxml2","binary_version":"2.9.1+dfsg1-3ubuntu4.8"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-1838.json"}},{"package":{"name":"libxml2","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/libxml2@2.9.3+dfsg1-1ubuntu0.1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.3+dfsg1-1ubuntu0.1"}]}],"versions":["2.9.2+zdfsg1-4","2.9.2+zdfsg1-4ubuntu1","2.9.2+zdfsg1-4ubuntu2","2.9.2+zdfsg1-4ubuntu3","2.9.3+dfsg1-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libxml2","binary_version":"2.9.3+dfsg1-1ubuntu0.1"},{"binary_name":"libxml2-utils","binary_version":"2.9.3+dfsg1-1ubuntu0.1"},{"binary_name":"python-libxml2","binary_version":"2.9.3+dfsg1-1ubuntu0.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-1838.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}