{"id":"CVE-2019-18198","details":"In the Linux kernel before 5.3.4, a reference count usage error in the fib6_rule_suppress() function in the fib6 suppression feature of net/ipv6/fib6_rules.c, when handling the FIB_LOOKUP_NOREF flag, can be exploited by a local attacker to corrupt memory, aka CID-ca7a03c41753.","modified":"2026-03-15T14:34:06.387723Z","published":"2019-10-18T22:15:14.767Z","references":[{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20191031-0005/"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/4161-1/"},{"type":"ADVISORY","url":"https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.4"},{"type":"REPORT","url":"https://launchpad.net/bugs/1847478"},{"type":"FIX","url":"https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ca7a03c4175366a92cee0ccc4fec0038c3266e26"},{"type":"FIX","url":"https://github.com/torvalds/linux/commit/ca7a03c4175366a92cee0ccc4fec0038c3266e26"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"5.3"},{"fixed":"5.3.4"}]},{"events":[{"introduced":"0"},{"last_affected":"19.10"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-18198.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"}]}