Medium severity5.5NVD Advisory· Published Oct 16, 2016· Updated May 6, 2026
CVE-2016-6828
CVE-2016-6828
Description
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.
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
12- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/nvdIssue TrackingPatch
- github.com/torvalds/linux/commit/bb1fceca22492109be12640d49f5ea5a544c6bb4nvdIssue TrackingPatch
- www.openwall.com/lists/oss-security/2016/08/15/1nvdExploitThird Party Advisory
- www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.7.5nvdRelease NotesThird Party Advisory
- bugzilla.redhat.com/show_bug.cginvdIssue TrackingThird Party Advisory
- rhn.redhat.com/errata/RHSA-2017-0036.htmlnvd
- rhn.redhat.com/errata/RHSA-2017-0086.htmlnvd
- rhn.redhat.com/errata/RHSA-2017-0091.htmlnvd
- rhn.redhat.com/errata/RHSA-2017-0113.htmlnvd
- www.securityfocus.com/bid/92452nvd
- marcograss.github.io/security/linux/2016/08/18/cve-2016-6828-linux-kernel-tcp-uaf.htmlnvd
- source.android.com/security/bulletin/2016-11-01.htmlnvd
News mentions
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