{"id":"CVE-2020-29661","details":"A locking issue was discovered in the tty subsystem of the Linux kernel through 5.9.13. drivers/tty/tty_jobctrl.c allows a use-after-free attack against TIOCSPGRP, aka CID-54ffccbf053b.","aliases":["A-175451802","ASB-A-175451802"],"modified":"2026-04-16T04:35:50.436849967Z","published":"2020-12-09T17:15:31.807Z","related":["ALSA-2021:0558","SUSE-RU-2021:14663-1","SUSE-SU-2021:0094-1","SUSE-SU-2021:0095-1","SUSE-SU-2021:0096-1","SUSE-SU-2021:0097-1","SUSE-SU-2021:0098-1","SUSE-SU-2021:0108-1","SUSE-SU-2021:0117-1","SUSE-SU-2021:0118-1","SUSE-SU-2021:0133-1","SUSE-SU-2021:0362-1","SUSE-SU-2021:0367-1","SUSE-SU-2021:0377-1","SUSE-SU-2021:0408-1","SUSE-SU-2021:0434-1","SUSE-SU-2021:0437-1","SUSE-SU-2021:0438-1","SUSE-SU-2021:0452-1","SUSE-SU-2021:14630-1","openSUSE-SU-2021:0060-1","openSUSE-SU-2021:0075-1","openSUSE-SU-2021:0242-1","openSUSE-SU-2024:10728-1","openSUSE-SU-2024:13704-1"],"references":[{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MZ7OAKAEFAXQRGBZK4LYUWINCD3D2XCL/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BOB25SU6XUL4TNP7KB63WNZSYTIYFDPP/"},{"type":"ADVISORY","url":"http://packetstormsecurity.com/files/164950/Kernel-Live-Patch-Security-Notice-LSN-0082-1.html"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20210122-0001/"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html"},{"type":"ADVISORY","url":"https://www.debian.org/security/2021/dsa-4843"},{"type":"ADVISORY","url":"http://packetstormsecurity.com/files/160681/Linux-TIOCSPGRP-Broken-Locking.html"},{"type":"FIX","url":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=54ffccbf053b5b6ca4f6e45094b942fab92a25fc"},{"type":"FIX","url":"http://www.openwall.com/lists/oss-security/2020/12/10/1"},{"type":"FIX","url":"https://www.oracle.com/security-alerts/cpuoct2021.html"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-29661.json","unresolved_ranges":[{"events":[{"introduced":"2.6.26"},{"fixed":"4.4.248"}]},{"events":[{"introduced":"4.5"},{"fixed":"4.9.248"}]},{"events":[{"introduced":"4.10"},{"fixed":"4.14.212"}]},{"events":[{"introduced":"4.15"},{"fixed":"4.19.163"}]},{"events":[{"introduced":"4.20"},{"fixed":"5.4.83"}]},{"events":[{"introduced":"5.5"},{"fixed":"5.9.14"}]},{"events":[{"introduced":"0"},{"last_affected":"32"}]},{"events":[{"introduced":"0"},{"last_affected":"33"}]},{"events":[{"introduced":"0"},{"last_affected":"9.0"}]},{"events":[{"introduced":"0"},{"last_affected":"10.0"}]},{"events":[{"introduced":"7.4.0"},{"last_affected":"7.7.1"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}