{"id":"CVE-2017-2647","details":"The KEYS subsystem in the Linux kernel before 3.18 allows local users to gain privileges or cause a denial of service (NULL pointer dereference and system crash) via vectors involving a NULL value for a certain match field, related to the keyring_search_iterator function in keyring.c.","modified":"2026-03-12T22:38:23.813310Z","published":"2017-03-31T04:59:00.157Z","related":["SUSE-SU-2017:1360-1","SUSE-SU-2017:2342-1","SUSE-SU-2017:2389-1","SUSE-SU-2017:2525-1","SUSE-SU-2017:2920-1"],"references":[{"type":"WEB","url":"https://usn.ubuntu.com/3849-1/"},{"type":"WEB","url":"https://usn.ubuntu.com/3849-2/"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2017:1842"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2017:2437"},{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/97258"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2017:2077"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2017:2444"},{"type":"FIX","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1428353"},{"type":"FIX","url":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c06cfb08b88dfbe13be44a69ae2fdc3a7c902d81"},{"type":"FIX","url":"https://github.com/torvalds/linux/commit/c06cfb08b88dfbe13be44a69ae2fdc3a7c902d81"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2017-2647.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"3.17.8"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}