{"id":"CVE-2017-2636","details":"Race condition in drivers/tty/n_hdlc.c in the Linux kernel through 4.10.1 allows local users to gain privileges or cause a denial of service (double free) by setting the HDLC line discipline.","modified":"2026-03-12T22:37:30.906734Z","published":"2017-03-07T22:59:00.157Z","related":["MGASA-2017-0088","MGASA-2017-0089","MGASA-2017-0090","SUSE-SU-2017:0864-1","SUSE-SU-2017:0865-1","SUSE-SU-2017:0866-1","SUSE-SU-2017:0912-1","SUSE-SU-2017:0913-1","SUSE-SU-2017:1990-1","SUSE-SU-2017:2043-1","SUSE-SU-2017:2049-1","SUSE-SU-2017:2060-1","SUSE-SU-2017:2061-1","SUSE-SU-2017:2062-1","SUSE-SU-2017:2063-1","SUSE-SU-2017:2065-1","SUSE-SU-2017:2067-1","SUSE-SU-2017:2068-1","SUSE-SU-2017:2072-1","SUSE-SU-2017:2073-1","SUSE-SU-2017:2088-1","SUSE-SU-2017:2092-1","SUSE-SU-2017:2093-1","SUSE-SU-2017:2095-1","SUSE-SU-2017:2096-1","SUSE-SU-2017:2099-1","SUSE-SU-2017:2342-1","SUSE-SU-2025:0152-1"],"references":[{"type":"ADVISORY","url":"http://www.debian.org/security/2017/dsa-3804"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2017:0931"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2017:1125"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2017:1126"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2017:1488"},{"type":"ADVISORY","url":"http://www.securitytracker.com/id/1037963"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2017:0892"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2017:0932"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2017:1232"},{"type":"ADVISORY","url":"https://a13xp0p0v.github.io/2017/03/24/CVE-2017-2636.html"},{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/96732"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2017:0933"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2017:0986"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2017:1233"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1428319"},{"type":"FIX","url":"http://www.openwall.com/lists/oss-security/2017/03/07/6"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"2.6.31"},{"fixed":"3.2.87"}]},{"events":[{"introduced":"3.3"},{"fixed":"3.10.106"}]},{"events":[{"introduced":"3.11"},{"fixed":"3.12.72"}]},{"events":[{"introduced":"3.13"},{"fixed":"3.16.42"}]},{"events":[{"introduced":"3.17"},{"fixed":"3.18.49"}]},{"events":[{"introduced":"3.19"},{"fixed":"4.1.49"}]},{"events":[{"introduced":"4.2"},{"fixed":"4.4.54"}]},{"events":[{"introduced":"4.5"},{"fixed":"4.9.15"}]},{"events":[{"introduced":"4.10"},{"fixed":"4.10.3"}]},{"events":[{"introduced":"0"},{"last_affected":"8.0"}]}],"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2017-2636.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}