vulnerability
Amazon Linux AMI: CVE-2016-6828: Security patch for kernel (ALAS-2016-740)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:L/AC:L/Au:N/C:N/I:N/A:C) | Sep 1, 2016 | Jul 1, 2017 | Oct 14, 2022 |
Severity
5
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:C)
Published
Sep 1, 2016
Added
Jul 1, 2017
Modified
Oct 14, 2022
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.
Solution
amazon-linux-upgrade-kernel
References
Rapid7 Labs
2026 Global Threat Landscape Report
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