{"id":"CVE-2017-6347","details":"The ip_cmsg_recv_checksum function in net/ipv4/ip_sockglue.c in the Linux kernel before 4.10.1 has incorrect expectations about skb data layout, which allows local users to cause a denial of service (buffer over-read) or possibly have unspecified other impact via crafted system calls, as demonstrated by use of the MSG_MORE flag in conjunction with loopback UDP transmission.","modified":"2026-04-16T06:16:38.067222845Z","published":"2017-03-01T20:59:00.533Z","related":["SUSE-SU-2017:1183-1","SUSE-SU-2017:1990-1"],"references":[{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/96487"},{"type":"FIX","url":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ca4ef4574f1ee5252e2cd365f8f5d5bafd048f32"},{"type":"FIX","url":"http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.10.1"},{"type":"FIX","url":"http://www.openwall.com/lists/oss-security/2017/02/28/5"},{"type":"FIX","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1427984"},{"type":"FIX","url":"https://github.com/torvalds/linux/commit/ca4ef4574f1ee5252e2cd365f8f5d5bafd048f32"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-6347.json","unresolved_ranges":[{"events":[{"introduced":"4.0"},{"fixed":"4.4.52"}]},{"events":[{"introduced":"4.5"},{"fixed":"4.9.13"}]},{"events":[{"introduced":"4.10"},{"fixed":"4.10.1"}]}]}}],"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"}]}