{"id":"CVE-2011-5321","aliases":["DEBIAN-CVE-2011-5321","DLA-246-1","EUVD-2011-5220","GHSA-w32m-rx9f-gjv3","RHSA-2015:1221","UBUNTU-CVE-2011-5321"],"status":"published","title":"The tty_open function in drivers/tty/tty_io.c in the Linux kernel before 3.1.1 mishandles a...","description":"The tty_open function in drivers/tty/tty_io.c in the Linux kernel before 3.1.1 mishandles a driver-lookup failure, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via crafted access to a device file under the /dev/pts 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mishandles a driver-lookup failure, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via crafted access to a device file under the /dev/pts directory.","status":"published","published":"2016-05-02T10:59:02.373Z","modified":"2026-06-16T23:36:21.137Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4.9,"vector":"AV:L/AC:L/Au:N/C:N/I:N/A:C","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:02:12.639283Z"}],"osv":[{"id":"CVE-2011-5321","description":"The tty_open function in drivers/tty/tty_io.c in the Linux kernel before 3.1.1 mishandles a driver-lookup failure, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via crafted access to a device file under the /dev/pts 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before 3.1.1 mishandles a driver-lookup failure, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via crafted access to a device file under the /dev/pts directory.","status":"withdrawn","published":"2016-05-02T10:59:00Z","modified":"2025-07-16T08:10:32.222944Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:54:06.395274Z"},{"id":"DLA-246-1","title":"linux-2.6 - security update","status":"published","published":"2015-06-14T00:00:00Z","modified":"2026-03-09T01:20:43.748182Z","updated_at":"2026-11-02T15:46:10.712745Z"},{"id":"RHSA-2015:1221","title":"Red Hat Security Advisory: kernel security, bug fix, and enhancement update","status":"published","published":"2024-09-15T22:37:28Z","modified":"2026-06-29T10:09:34Z","updated_at":"2026-11-02T15:53:03.182161Z"}]}}