{"schema_version":"1.7.5","id":"CVE-2021-3635","published":"2021-08-13T14:15:07.877Z","modified":"2026-03-14T11:02:05.568726Z","aliases":["A-197614484","PUB-A-197614484"],"related":["ALSA-2021:4356"],"details":"A flaw was found in the Linux kernel netfilter implementation in versions prior to 5.5-rc7. A user with root (CAP_SYS_ADMIN) access is able to panic the system when issuing netfilter netflow commands.","affected":[{"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-3635.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"5.5"}]},{"events":[{"introduced":"0"},{"last_affected":"5.5-rc1"}]},{"events":[{"introduced":"0"},{"last_affected":"5.5-rc2"}]},{"events":[{"introduced":"0"},{"last_affected":"5.5-rc3"}]},{"events":[{"introduced":"0"},{"last_affected":"5.5-rc4"}]},{"events":[{"introduced":"0"},{"last_affected":"5.5-rc5"}]},{"events":[{"introduced":"0"},{"last_affected":"5.5-rc6"}]},{"events":[{"introduced":"0"},{"last_affected":"6.0"}]},{"events":[{"introduced":"0"},{"last_affected":"7.0"}]},{"events":[{"introduced":"0"},{"last_affected":"8.0"}]},{"events":[{"introduced":"0"},{"last_affected":"34"}]}]}}],"references":[{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1976946"}],"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H"}]}