{"id":"CVE-2016-6828","details":"The tcp_check_send_head function in include/net/tcp.h in the Linux kernel before 4.7.5 does not properly maintain certain SACK state after a failed data copy, which allows local users to cause a denial of service (tcp_xmit_retransmit_queue use-after-free and system crash) via a crafted SACK option.","modified":"2026-04-16T06:15:34.987956483Z","published":"2016-10-16T21:59:08.053Z","related":["SUSE-SU-2016:2912-1","SUSE-SU-2016:2976-1","SUSE-SU-2016:3069-1","SUSE-SU-2016:3304-1","SUSE-SU-2017:0333-1","SUSE-SU-2017:0471-1","SUSE-SU-2017:0494-1","openSUSE-SU-2024:10128-1"],"references":[{"type":"WEB","url":"http://www.securityfocus.com/bid/92452"},{"type":"WEB","url":"https://marcograss.github.io/security/linux/2016/08/18/cve-2016-6828-linux-kernel-tcp-uaf.html"},{"type":"WEB","url":"https://source.android.com/security/bulletin/2016-11-01.html"},{"type":"ADVISORY","url":"http://rhn.redhat.com/errata/RHSA-2017-0091.html"},{"type":"ADVISORY","url":"http://rhn.redhat.com/errata/RHSA-2017-0113.html"},{"type":"ADVISORY","url":"http://rhn.redhat.com/errata/RHSA-2017-0036.html"},{"type":"ADVISORY","url":"http://rhn.redhat.com/errata/RHSA-2017-0086.html"},{"type":"ADVISORY","url":"http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.7.5"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1367091"},{"type":"FIX","url":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=bb1fceca22492109be12640d49f5ea5a544c6bb4"},{"type":"FIX","url":"https://github.com/torvalds/linux/commit/bb1fceca22492109be12640d49f5ea5a544c6bb4"},{"type":"EVIDENCE","url":"http://www.openwall.com/lists/oss-security/2016/08/15/1"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"4.7.4"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-6828.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"}]}