{"id":"CVE-2011-4613","aliases":["DEBIAN-CVE-2011-4613","DSA-2364-1","EUVD-2011-4537","GHSA-59qr-5c97-267m"],"status":"published","title":"The X.Org X wrapper (xserver-wrapper.c) in Debian GNU/Linux and Ubuntu Linux does not properly...","description":"The X.Org X wrapper (xserver-wrapper.c) in Debian GNU/Linux and Ubuntu Linux does not properly verify the TTY of a user who is starting X, which allows local users to bypass intended access restrictions by associating stdin with a file that is misinterpreted as the console TTY.","severity":{"version":"2.0","score":4.6,"vector":"AV:L/AC:L/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00862,"percentile":0.58806,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":true},"cwes":["CWE-264"],"published":"2011-12-18T00:00:00Z","modified":"2026-10-23T17:47:50Z","exploits":[{"source":"exploitdb","id":"EDB-18040","title":"X.Org xorg 1.4 \u003c 1.11.2 - File Permission Change","type":"local","platform":"linux","date":"2011-10-28","url":"https://www.exploit-db.com/exploits/18040"}],"fixes":[{"ecosystem":"Debian:12","package":"xorg","fixed_in":["1:7.6+10"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"xorg","fixed_in":["1:7.6+10"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"xorg","fixed_in":["1:7.6+10"],"sources":["osv"]},{"ecosystem":"Debian:6.0","package":"xorg","fixed_in":["1:7.5+8+squeeze1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"xorg","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:7.6+10"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"xorg","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:7.6+10"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"xorg","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:7.6+10"}]}]},{"source":"osv","ecosystem":"Debian:6.0","package":"xorg","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:7.5+8+squeeze1"}]}],"versions":["1:7.5+8","1:7.5+8+armhf"]}],"products":[{"vendor":"canonical","product":"ubuntu_linux"},{"vendor":"debian","product":"debian_linux"},{"vendor":"ubuntu","product":"linux"},{"vendor":"x.org","product":"x_server"}],"references":[{"url":"http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=652249","tags":["x_refsource_MISC","x_transferred","Vendor Advisory","advisory"]},{"url":"http://www.ubuntu.com/usn/USN-1349-1","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred","Vendor Advisory","advisory"]},{"url":"http://www.debian.org/security/2011/dsa-2364","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-4613"},{"url":"https://github.com/advisories/GHSA-59qr-5c97-267m"},{"url":"https://security-tracker.debian.org/tracker/CVE-2011-4613","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2011-4613","description":"The X.Org X wrapper (xserver-wrapper.c) in Debian GNU/Linux and Ubuntu Linux does not properly verify the TTY of a user who is starting X, which allows local users to bypass intended access restrictions by associating stdin with a file that is misinterpreted as the console TTY.","status":"published","published":"2014-02-05T19:00:00Z","modified":"2024-08-07T00:09:19.491Z","updated_at":"2026-11-02T14:35:37.671707Z"}],"euvd":[{"id":"EUVD-2011-4537","description":"The X.Org X wrapper (xserver-wrapper.c) in Debian GNU/Linux and Ubuntu Linux does not properly verify the TTY of a user who is starting X, which allows local users to bypass intended access restrictions by associating stdin with a file that is misinterpreted as the console TTY.","status":"published","published":"2014-02-05T19:00:00Z","modified":"2024-08-07T00:09:19Z","updated_at":"2026-11-03T01:39:48.540824Z"}],"ghsa":[{"id":"GHSA-59qr-5c97-267m","title":"The X.Org X wrapper (xserver-wrapper.c) in Debian GNU/Linux and Ubuntu Linux does not properly...","description":"The X.Org X wrapper (xserver-wrapper.c) in Debian GNU/Linux and Ubuntu Linux does not properly verify the TTY of a user who is starting X, which allows local users to bypass intended access restrictions by associating stdin with a file that is misinterpreted as the console TTY.","status":"published","published":"2022-05-13T01:23:09Z","modified":"2023-02-01T05:07:19Z","updated_at":"2026-11-02T14:50:31.141675Z"}],"nvd":[{"id":"CVE-2011-4613","description":"The X.Org X wrapper (xserver-wrapper.c) in Debian GNU/Linux and Ubuntu Linux does not properly verify the TTY of a user who is starting X, which allows local users to bypass intended access restrictions by associating stdin with a file that is misinterpreted as the console TTY.","status":"published","published":"2014-02-05T19:55:28.657Z","modified":"2026-06-16T23:35:08.707Z","cvss":[{"version":"2.0","score":4.6,"vector":"AV:L/AC:L/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-264"],"updated_at":"2026-11-02T14:02:12.639283Z"}],"osv":[{"id":"CVE-2011-4613","description":"The X.Org X wrapper (xserver-wrapper.c) in Debian GNU/Linux and Ubuntu Linux does not properly verify the TTY of a user who is starting X, which allows local users to bypass intended access restrictions by associating stdin with a file that is misinterpreted as the console TTY.","status":"published","published":"2014-02-05T19:55:28Z","modified":"2026-04-10T03:42:06.521735Z","updated_at":"2026-11-02T15:43:58.279353Z"},{"id":"DEBIAN-CVE-2011-4613","description":"The X.Org X wrapper (xserver-wrapper.c) in Debian GNU/Linux and Ubuntu Linux does not properly verify the TTY of a user who is starting X, which allows local users to bypass intended access restrictions by associating stdin with a file that is misinterpreted as the console TTY.","status":"published","published":"2014-02-05T19:55:28.657Z","modified":"2026-10-23T17:47:50.376699524Z","updated_at":"2026-11-02T15:45:24.612044Z"},{"id":"DSA-2364-1","title":"xorg - incorrect permission check","status":"published","published":"2011-12-18T00:00:00Z","modified":"2026-03-09T01:21:02.283151Z","updated_at":"2026-11-02T15:46:15.108335Z"}]}}