CVE-2016-6828
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2016-6828
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2016-6828.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2016-6828
- Downstream
- Related
- Published
- 2016-10-16T21:59:08Z
- Modified
- 2025-08-09T20:01:28Z
- Severity
-
- 5.5 (Medium) CVSS_V3 - CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
The tcpchecksendhead 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 (tcpxmitretransmitqueue use-after-free and system crash) via a crafted SACK option.
- References
-
- http://rhn.redhat.com/errata/RHSA-2017-0036.html
- http://rhn.redhat.com/errata/RHSA-2017-0086.html
- http://rhn.redhat.com/errata/RHSA-2017-0091.html
- http://rhn.redhat.com/errata/RHSA-2017-0113.html
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.7.5
- http://www.openwall.com/lists/oss-security/2016/08/15/1
- https://bugzilla.redhat.com/show_bug.cgi?id=1367091
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=bb1fceca22492109be12640d49f5ea5a544c6bb4
- https://github.com/torvalds/linux/commit/bb1fceca22492109be12640d49f5ea5a544c6bb4
- http://www.securityfocus.com/bid/92452
- https://marcograss.github.io/security/linux/2016/08/18/cve-2016-6828-linux-kernel-tcp-uaf.html
- https://source.android.com/security/bulletin/2016-11-01.html