{"id":"CVE-2020-16119","details":"Use-after-free vulnerability in the Linux kernel exploitable by a local attacker due to reuse of a DCCP socket with an attached dccps_hc_tx_ccid object as a listener after being released. Fixed in Ubuntu Linux kernel 5.4.0-51.56, 5.3.0-68.63, 4.15.0-121.123, 4.4.0-193.224, 3.13.0.182.191 and 3.2.0-149.196.","modified":"2026-04-16T04:32:17.977880070Z","published":"2021-01-14T01:15:13.010Z","related":["CGA-p49v-mx3v-9ff2","SUSE-SU-2022:3609-1","SUSE-SU-2022:3704-1","SUSE-SU-2022:3775-1","SUSE-SU-2022:3809-1","SUSE-SU-2022:4617-1","SUSE-SU-2023:0416-1"],"references":[{"type":"WEB","url":"https://lore.kernel.org/netdev/20201013171849.236025-1-kleber.souza%40canonical.com/T/"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20210304-0006/"},{"type":"ADVISORY","url":"https://ubuntu.com/USN-4577-1"},{"type":"ADVISORY","url":"https://ubuntu.com/USN-4578-1"},{"type":"ADVISORY","url":"https://ubuntu.com/USN-4576-1"},{"type":"ADVISORY","url":"https://ubuntu.com/USN-4579-1"},{"type":"ADVISORY","url":"https://ubuntu.com/USN-4580-1"},{"type":"ADVISORY","url":"https://www.debian.org/security/2021/dsa-4978"},{"type":"FIX","url":"https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/focal/commit/?id=01872cb896c76cedeabe93a08456976ab55ad695"},{"type":"FIX","url":"https://launchpad.net/bugs/1883840"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"12.04"}]},{"events":[{"introduced":"0"},{"last_affected":"14.04"}]},{"events":[{"introduced":"0"},{"last_affected":"16.04"}]},{"events":[{"introduced":"0"},{"last_affected":"18.04"}]},{"events":[{"introduced":"0"},{"last_affected":"20.04"}]},{"events":[{"introduced":"0"},{"last_affected":"9.0"}]},{"events":[{"introduced":"0"},{"last_affected":"11.0"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-16119.json"}}],"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"}]}