CVE-2016-6828
Published · Updated
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23Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendepss 1.2%
from disclosure to weaponsame day
Published on NVDOct 16
1st PoCAug 18
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.
Affected products
n/a · n/apublic PoCs found — 1
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References
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=bb1fceca22492109be12640d49f5ea5a544c6bb4http://rhn.redhat.com/errata/RHSA-2017-0036.htmlhttp://rhn.redhat.com/errata/RHSA-2017-0086.htmlhttp://rhn.redhat.com/errata/RHSA-2017-0091.htmlhttp://rhn.redhat.com/errata/RHSA-2017-0113.htmlhttps://bugzilla.redhat.com/show_bug.cgi?id=1367091https://github.com/torvalds/linux/commit/bb1fceca22492109be12640d49f5ea5a544c6bb4https://marcograss.github.io/security/linux/2016/08/18/cve-2016-6828-linux-kernel-tcp-uaf.htmlhttps://source.android.com/security/bulletin/2016-11-01.htmlhttp://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.7.5http://www.openwall.com/lists/oss-security/2016/08/15/1http://www.securityfocus.com/bid/92452