{"id":"UBUNTU-CVE-2017-9049","details":"libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a heap-based buffer over-read in the xmlDictComputeFastKey function in dict.c. This vulnerability causes programs that use libxml2, such as PHP, to crash. This vulnerability exists because of an incomplete fix for libxml2 Bug 759398.","modified":"2026-02-04T03:03:44.627139Z","published":"2017-05-18T00:00:00Z","related":["USN-3424-1","USN-3424-2"],"upstream":["CVE-2017-9049"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2017-9049"},{"type":"REPORT","url":"http://www.openwall.com/lists/oss-security/2017/05/15/1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3424-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3424-2"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2017-9049"}],"affected":[{"package":{"name":"libxml2","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/libxml2@2.9.1+dfsg1-3ubuntu4.10?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.1+dfsg1-3ubuntu4.10"}]}],"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","2.9.1+dfsg1-3ubuntu4.8","2.9.1+dfsg1-3ubuntu4.9"],"ecosystem_specific":{"binaries":[{"binary_name":"libxml2","binary_version":"2.9.1+dfsg1-3ubuntu4.10"},{"binary_name":"libxml2-dev","binary_version":"2.9.1+dfsg1-3ubuntu4.10"},{"binary_name":"libxml2-utils","binary_version":"2.9.1+dfsg1-3ubuntu4.10"},{"binary_name":"python-libxml2","binary_version":"2.9.1+dfsg1-3ubuntu4.10"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-9049.json"}},{"package":{"name":"libxml2","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/libxml2@2.9.3+dfsg1-1ubuntu0.3?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.3+dfsg1-1ubuntu0.3"}]}],"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","2.9.3+dfsg1-1ubuntu0.1","2.9.3+dfsg1-1ubuntu0.2"],"ecosystem_specific":{"binaries":[{"binary_name":"libxml2","binary_version":"2.9.3+dfsg1-1ubuntu0.3"},{"binary_name":"libxml2-dev","binary_version":"2.9.3+dfsg1-1ubuntu0.3"},{"binary_name":"libxml2-utils","binary_version":"2.9.3+dfsg1-1ubuntu0.3"},{"binary_name":"python-libxml2","binary_version":"2.9.3+dfsg1-1ubuntu0.3"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-9049.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}