{"id":"UBUNTU-CVE-2016-1521","details":"The directrun function in directmachine.cpp in Libgraphite in Graphite 2 1.2.4, as used in Mozilla Firefox before 43.0 and Firefox ESR 38.x before 38.6.1, does not validate a certain skip operation, which allows remote attackers to execute arbitrary code, obtain sensitive information, or cause a denial of service (out-of-bounds read and application crash) via a crafted Graphite smart font.","modified":"2026-04-22T10:53:50.609142Z","published":"2016-02-08T00:00:00Z","related":["USN-2902-1"],"upstream":["CVE-2016-1521"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-1521"},{"type":"REPORT","url":"http://www.talosintel.com/reports/TALOS-2016-0058/"},{"type":"REPORT","url":"http://www.talosintel.com/reports/TALOS-2016-0061/"},{"type":"REPORT","url":"http://blog.talosintel.com/2016/02/vulnerability-spotlight-libgraphite.html"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-2902-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2016-1521"}],"affected":[{"package":{"name":"graphite2","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/graphite2@1.2.4-1ubuntu1.1?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.4-1ubuntu1.1"}]}],"versions":["1.2.3-1","1.2.4-1","1.2.4-1ubuntu1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"1.2.4-1ubuntu1.1","binary_name":"libgraphite2-3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-1521.json"}},{"package":{"name":"graphite2","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/graphite2@1.3.5-1ubuntu1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.5-1ubuntu1"}]}],"versions":["1.2.4-3ubuntu1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"1.3.5-1ubuntu1","binary_name":"libgraphite2-3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-1521.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}