{"id":"CVE-2021-22600","aliases":["A-213464034","ASB-A-213464034","PUB-A-213464034"],"url":"https://o3.security/vulnerability/CVE-2021-22600","summary":null,"details":"A double free bug in packet_set_ring() in net/packet/af_packet.c can be exploited by a local user through crafted syscalls to escalate privileges or deny service. We recommend upgrading kernel past the effected versions or rebuilding past ec6af094ea28f0f2dda1a6a33b14cd57e36a9755","published":"2022-01-26T14:15:08.123Z","modified":"2026-03-14T14:50:36.604360Z","cvss":{"score":7,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":{"score":0.06079,"percentile":0.93007,"asOf":"2026-09-15"},"cisaKev":null,"exploitsKnown":2,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-22600"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20230110-0002/"},{"type":"ADVISORY","url":"https://www.debian.org/security/2022/dsa-5096"},{"type":"FIX","url":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=ec6af094ea28f0f2dda1a6a33b14cd57e36a9755"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-03-14T14:50:36.604360Z"}}