{"id":"USN-3453-1","summary":"xorg-server, xorg-server-hwe-16.04, xorg-server-lts-xenial vulnerabilities","details":"Michal Srb discovered that the X.Org X server incorrectly handled shared\nmemory segments. An attacker able to connect to an X server, either locally\nor remotely, could use this issue to crash the server, or possibly replace\nshared memory segments of other X clients in the same session.\n(CVE-2017-13721)\n\nMichal Srb discovered that the X.Org X server incorrectly handled XKB\nbuffers. An attacker able to connect to an X server, either locally or\nremotely, could use this issue to crash the server, or possibly execute\narbitrary code. (CVE-2017-13723)\n","modified":"2026-02-10T04:41:13Z","published":"2017-10-12T14:32:14Z","related":["UBUNTU-CVE-2017-13721","UBUNTU-CVE-2017-13723"],"upstream":["CVE-2017-13721","CVE-2017-13723","UBUNTU-CVE-2017-13721","UBUNTU-CVE-2017-13723"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3453-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2017-13721"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2017-13723"}],"affected":[{"package":{"name":"xorg-server","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/xorg-server@2:1.15.1-0ubuntu2.10?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:1.15.1-0ubuntu2.10"}]}],"versions":["2:1.14.3-3ubuntu2","2:1.14.3-3ubuntu3","2:1.14.3-3ubuntu4","2:1.14.3-5ubuntu1","2:1.14.4-1ubuntu1","2:1.14.4-1ubuntu2","2:1.14.4.901-0ubuntu2","2:1.14.5-1ubuntu2","2:1.14.5-1ubuntu4","2:1.15.0-1ubuntu1","2:1.15.0-1ubuntu2","2:1.15.0-1ubuntu3","2:1.15.0-1ubuntu4","2:1.15.0-1ubuntu6","2:1.15.0-1ubuntu7","2:1.15.1-0ubuntu1","2:1.15.1-0ubuntu2","2:1.15.1-0ubuntu2.1","2:1.15.1-0ubuntu2.4","2:1.15.1-0ubuntu2.5","2:1.15.1-0ubuntu2.6","2:1.15.1-0ubuntu2.7","2:1.15.1-0ubuntu2.9"],"ecosystem_specific":{"availability":"No 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