{"id":"CVE-2017-2671","details":"The ping_unhash function in net/ipv4/ping.c in the Linux kernel through 4.10.8 is too late in obtaining a certain lock and consequently cannot ensure that disconnect function calls are safe, which allows local users to cause a denial of service (panic) by leveraging access to the protocol value of IPPROTO_ICMP in a socket system call.","modified":"2026-03-15T21:53:40.520741Z","published":"2017-04-05T06:59:00.197Z","related":["MGASA-2017-0136","MGASA-2017-0147","MGASA-2017-0148","SUSE-SU-2017:1183-1","SUSE-SU-2017:1247-1","SUSE-SU-2017:1301-1","SUSE-SU-2017:1360-1","SUSE-SU-2017:1990-1","SUSE-SU-2017:2342-1","SUSE-SU-2017:2525-1"],"references":[{"type":"WEB","url":"https://usn.ubuntu.com/3754-1/"},{"type":"WEB","url":"https://www.exploit-db.com/exploits/42135/"},{"type":"ADVISORY","url":"http://openwall.com/lists/oss-security/2017/04/04/8"},{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/97407"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2017:2669"},{"type":"ADVISORY","url":"https://github.com/danieljiang0415/android_kernel_crash_poc"},{"type":"ADVISORY","url":"https://twitter.com/danieljiang0415/status/845116665184497664"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2017:1842"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2017:2077"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2018:1854"},{"type":"FIX","url":"https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/net/ipv4/ping.c?id=43a6684519ab0a6c52024b5e25322476cabad893"},{"type":"FIX","url":"https://github.com/torvalds/linux/commit/43a6684519ab0a6c52024b5e25322476cabad893"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"4.10.8"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-2671.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}