{"id":"CVE-2016-1836","aliases":["DEBIAN-CVE-2016-1836","DSA-3593-1","EUVD-2016-2931","GHSA-82c9-fqj6-w7gm","MGASA-2016-0263","RHSA-2016:1292","UBUNTU-CVE-2016-1836","USN-2994-1","openSUSE-SU-2024:10192-1","openSUSE-SU-2024:10228-1"],"status":"published","title":"Use-after-free vulnerability in the xmlDictComputeFastKey function in libxml2 before 2.9.4, as...","description":"Use-after-free vulnerability in the xmlDictComputeFastKey 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 via a crafted XML document.","severity":{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.04266,"percentile":0.91142,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-416"],"published":"2016-05-20T00:00:00Z","modified":"2026-10-24T10:31:01Z","fixes":[{"ecosystem":"Debian:12","package":"libxml2","fixed_in":["2.9.3+dfsg1-1.1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"libxml2","fixed_in":["2.9.3+dfsg1-1.1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"libxml2","fixed_in":["2.9.3+dfsg1-1.1"],"sources":["osv"]},{"ecosystem":"Ubuntu:14.04:LTS","package":"libxml2","fixed_in":["2.9.1+dfsg1-3ubuntu4.8"],"sources":["osv"]},{"ecosystem":"Ubuntu:16.04:LTS","package":"libxml2","fixed_in":["2.9.3+dfsg1-1ubuntu0.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"libxml2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.3+dfsg1-1.1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"libxml2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.3+dfsg1-1.1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"libxml2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.3+dfsg1-1.1"}]}]},{"source":"osv","ecosystem":"Debian:8","package":"libxml2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.1+dfsg1-5+deb8u2"}]}],"versions":["2.9.1+dfsg1-5","2.9.1+dfsg1-5+deb8u1"],"bundled":16},{"source":"osv","ecosystem":"Mageia:5","package":"libxml2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.4-1.1.mga5"}]}],"bundled":15},{"source":"osv","ecosystem":"Red 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Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-1836","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-82c9-fqj6-w7gm"},{"url":"https://security-tracker.debian.org/tracker/CVE-2016-1836","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2016-0263.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=18486","tags":["report"]},{"url":"http://www.xmlsoft.org/news.html","tags":["web"]},{"url":"https://rhn.redhat.com/errata/RHSA-2016-1292.html","tags":["web"]},{"url":"http://lwn.net/Vulnerabilities/688826/","tags":["web"]},{"url":"https://access.redhat.com/security/updates/classification/#important","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1319829","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1332443","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1338682","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1338686","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1338691","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1338696","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1338700","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1338701","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1338702","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1338703","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1338705","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1338706","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1338708","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1338711","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2016/rhsa-2016_1292.json","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2016-1762","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2016-1762","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-1762","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2016-1833","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2016-1833","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-1833","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2016-1834","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2016-1834","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-1834","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2016-1835","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2016-1835","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-1835","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2016-1836","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2016-1836","tags":["advisory","report"]},{"url":"https://access.redhat.com/security/cve/CVE-2016-1837","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2016-1837","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-1837","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2016-1838","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2016-1838","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-1838","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2016-1839","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2016-1839","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-1839","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2016-1840","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2016-1840","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-1840","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2016-3627","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2016-3627","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-3627","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2016-3705","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2016-3705","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-3705","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2016-4447","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2016-4447","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-4447","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2016-4448","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2016-4448","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-4448","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2016-4449","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2016-4449","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-4449","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2016-1836","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-2994-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2015-8806","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2016-1762","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2016-1833","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2016-1834","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2016-1835","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2016-1837","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2016-1838","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2016-1839","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2016-1840","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2016-2073","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2016-3627","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2016-3705","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2016-4447","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2016-4449","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2016-4483","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2008-4225","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2008-4226","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2008-4409","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2010-4494","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2011-1944","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2012-5134","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2013-0338","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2013-1969","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-0191","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-3660","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-1819","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-5312","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-7497","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-7498","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-7499","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-7500","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-7941","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-7942","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-8035","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-8242","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-1762","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-1833","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-1834","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-1835","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-1836","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-1837","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-1838","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-1839","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-1840","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-3627","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-3705","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-4483","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2016-1836","description":"Use-after-free vulnerability in the xmlDictComputeFastKey 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 via a crafted XML document.","status":"published","published":"2016-05-20T10:00:00Z","modified":"2024-08-05T23:10:39.898Z","updated_at":"2026-11-02T14:33:35.488991Z"}],"euvd":[{"id":"EUVD-2016-2931","description":"Use-after-free vulnerability in the xmlDictComputeFastKey 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 via a crafted XML document.","status":"published","published":"2016-05-20T10:00:00Z","modified":"2024-08-05T23:10:39Z","updated_at":"2026-11-03T02:22:55.519158Z"}],"ghsa":[{"id":"GHSA-82c9-fqj6-w7gm","title":"Use-after-free vulnerability in the xmlDictComputeFastKey function in libxml2 before 2.9.4, as...","description":"Use-after-free vulnerability in the xmlDictComputeFastKey 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 via a crafted XML document.","status":"published","published":"2022-05-14T01:16:30Z","modified":"2023-02-02T05:03:24Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:51:38.289817Z"}],"nvd":[{"id":"CVE-2016-1836","description":"Use-after-free vulnerability in the xmlDictComputeFastKey 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 via a crafted XML document.","status":"published","published":"2016-05-20T10:59:50.017Z","modified":"2026-06-17T00:42:43.28Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:03:25.366449Z"}],"osv":[{"id":"CVE-2016-1836","description":"Use-after-free vulnerability in the xmlDictComputeFastKey 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 via a crafted XML document.","status":"published","published":"2016-05-20T10:59:50.017Z","modified":"2026-10-24T10:31:01.380593116Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:44:02.114472Z"},{"id":"DEBIAN-CVE-2016-1836","description":"Use-after-free vulnerability in the xmlDictComputeFastKey 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 via a crafted XML document.","status":"published","published":"2016-05-20T10:59:50.017Z","modified":"2026-09-22T07:01:15.289331864Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:45:27.323751Z"},{"id":"RHSA-2016:1292","title":"Red Hat Security Advisory: libxml2 security update","status":"published","published":"2024-09-15T23:29:30Z","modified":"2026-09-21T10:01:22Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:03.734507Z"},{"id":"UBUNTU-CVE-2016-1836","description":"Use-after-free vulnerability in the xmlDictComputeFastKey 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 via a crafted XML document.","status":"published","published":"2016-05-20T00:00:00Z","modified":"2026-04-22T10:33:54.671501Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:54:11.492576Z"},{"id":"DSA-3593-1","title":"libxml2 - security update","status":"published","published":"2016-06-02T00:00:00Z","modified":"2026-03-09T02:11:30.367494Z","updated_at":"2026-11-02T15:46:16.199525Z"},{"id":"MGASA-2016-0263","title":"Updated libxml2 packages fix security vulnerability","description":"A heap-based buffer overflow flaw was found in the way libxml2 parsed\ncertain crafted XML input. A remote attacker could provide a specially\ncrafted XML file that, when opened in an application linked against\nlibxml2, would cause the application to crash or execute arbitrary code\nwith the permissions of the user running the application (CVE-2016-1834,\nCVE-2016-1840).\n\nMultiple denial of service flaws were found in libxml2. A remote attacker\ncould provide a specially crafted XML file that, when processed by an\napplication using libxml2, could cause that application to crash\n(CVE-2016-1762, CVE-2016-1833, CVE-2016-1835, CVE-2016-1836,\nCVE-2016-1837, CVE-2016-1838, CVE-2016-1839,  CVE-2015-8806,\nCVE-2016-2073, CVE-2016-4483, CVE-2016-4447, CVE-2016-4448,\nCVE-2016-4449).\n\nThe libxml2 package has been updated to version 2.9.4, fixing these issues\nand other bugs.\n","status":"published","published":"2016-07-26T21:59:16Z","modified":"2026-04-16T06:22:47.303254442Z","updated_at":"2026-11-02T15:49:40.103088Z"},{"id":"openSUSE-SU-2024:10192-1","title":"libxml2-2-2.9.4-1.22 on GA media","description":"These are all security issues fixed in the libxml2-2-2.9.4-1.22 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T03:48:35.051224Z","updated_at":"2026-11-02T16:58:33.135986Z"},{"id":"openSUSE-SU-2024:10228-1","title":"python-libxml2-2.9.4-1.4 on GA media","description":"These are all security issues fixed in the python-libxml2-2.9.4-1.4 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T04:26:38.266131Z","updated_at":"2026-11-02T16:58:33.135986Z"},{"id":"USN-2994-1","title":"libxml2 vulnerabilities","description":"It was discovered that libxml2 incorrectly handled certain malformed\ndocuments. If a user or automated system were tricked into opening a\nspecially crafted document, an attacker could possibly cause libxml2 to\ncrash, resulting in a denial of service. (CVE-2015-8806, CVE-2016-2073,\nCVE-2016-3627, CVE-2016-3705, CVE-2016-4447)\n\nIt was discovered that libxml2 incorrectly handled certain malformed\ndocuments. If a user or automated system were tricked into opening a\nspecially crafted document, an attacker could cause libxml2 to crash,\nresulting in a denial of service, or possibly execute arbitrary code.\n(CVE-2016-1762, CVE-2016-1834)\n\nMateusz Jurczyk discovered that libxml2 incorrectly handled certain\nmalformed documents. If a user or automated system were tricked into\nopening a specially crafted document, an attacker could cause libxml2 to\ncrash, resulting in a denial of service, or possibly execute arbitrary\ncode. (CVE-2016-1833, CVE-2016-1838, CVE-2016-1839)\n\nWei Lei and Liu Yang discovered that libxml2 incorrectly handled certain\nmalformed documents. If a user or automated system were tricked into\nopening a specially crafted document, an attacker could cause libxml2 to\ncrash, resulting in a denial of service, or possibly execute arbitrary\ncode. (CVE-2016-1835, CVE-2016-1837)\n\nWei Lei and Liu Yang discovered that libxml2 incorrectly handled certain\nmalformed documents. If a user or automated system were tricked into\nopening a specially crafted document, an attacker could cause libxml2 to\ncrash, resulting in a denial of service, or possibly execute arbitrary\ncode. This issue only applied to Ubuntu 14.04 LTS, Ubuntu 15.10 and\nUbuntu 16.04 LTS. (CVE-2016-1836)\n\nKostya Serebryany discovered that libxml2 incorrectly handled certain\nmalformed documents. If a user or automated system were tricked into\nopening a specially crafted document, an attacker could cause libxml2 to\ncrash, resulting in a denial of service, or possibly execute arbitrary\ncode. (CVE-2016-1840)\n\nIt was discovered that libxml2 would load certain XML external entities. If\na user or automated system were tricked into opening a specially crafted\ndocument, an attacker could possibly obtain access to arbitrary files or\ncause resource consumption. (CVE-2016-4449)\n\nGustavo Grieco discovered that libxml2 incorrectly handled certain\nmalformed documents. If a user or automated system were tricked into\nopening a specially crafted document, an attacker could possibly cause\nlibxml2 to crash, resulting in a denial of service. (CVE-2016-4483)\n","status":"published","published":"2016-06-06T16:43:37Z","modified":"2026-04-22T09:25:46.534551Z","updated_at":"2026-11-02T16:58:10.303275Z"}]}}