{"id":"UBUNTU-CVE-2013-6424","details":"Integer underflow in the xTrapezoidValid macro in render/picture.h in X.Org allows context-dependent attackers to cause a denial of service (crash) via a negative bottom value.","modified":"2026-01-30T01:15:45.044704Z","published":"2014-01-18T00:00:00Z","withdrawn":"2025-07-18T16:42:56Z","related":["USN-2500-1"],"upstream":["CVE-2013-6424"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2013-6424"},{"type":"REPORT","url":"http://www.openwall.com/lists/oss-security/2013/12/03/8"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-2500-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2013-6424"}],"affected":[{"package":{"name":"xorg-server","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/xorg-server@2:1.14.3-3ubuntu3?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:1.14.3-3ubuntu3"}]}],"versions":["2:1.14.3-3ubuntu2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"2:1.14.3-3ubuntu3","binary_name":"xdmx"},{"binary_version":"2:1.14.3-3ubuntu3","binary_name":"xdmx-tools"},{"binary_version":"2:1.14.3-3ubuntu3","binary_name":"xnest"},{"binary_version":"2:1.14.3-3ubuntu3","binary_name":"xserver-common"},{"binary_version":"2:1.14.3-3ubuntu3","binary_name":"xserver-xephyr"},{"binary_version":"2:1.14.3-3ubuntu3","binary_name":"xserver-xfbdev"},{"binary_version":"2:1.14.3-3ubuntu3","binary_name":"xserver-xorg-core"},{"binary_version":"2:1.14.3-3ubuntu3","binary_name":"xserver-xorg-core-dbg"},{"binary_version":"2:1.14.3-3ubuntu3","binary_name":"xserver-xorg-core-udeb"},{"binary_version":"2:1.14.3-3ubuntu3","binary_name":"xserver-xorg-dev"},{"binary_version":"2:1.14.3-3ubuntu3","binary_name":"xserver-xorg-xmir"},{"binary_version":"2:1.14.3-3ubuntu3","binary_name":"xvfb"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2013/UBUNTU-CVE-2013-6424.json"}}],"schema_version":"1.7.3","severity":[{"type":"Ubuntu","score":"low"}]}