CVE-2016-6828

CVE Details

Release Date:	2016-08-15
Impact:	Moderate	What is this?

Description

The tcp_check_send_head function in include/net/tcp.h in the Linuxkernel 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.

See more information about CVE-2016-6828 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v2 metrics

Base Score:	3.6
Vector String:	AV:L/AC:L/Au:N/C:N/I:P/A:P
Version:	2.0
Attack Vector:	Local
Attack Complexity:	Low
Authentication:	None
Confidentiality Impact:	None
Integrity Impact:	Partial
Availability Impact:	Partial

Errata information

Platform	Errata	Release Date
Oracle Linux version 5 (kernel-uek)	ELSA-2017-3510	2017-01-12
Oracle Linux version 6 (dtrace-modules-3.8.13-118.16.2.el6uek)	ELSA-2017-3509	2017-01-12
Oracle Linux version 6 (dtrace-modules-4.1.12-61.1.25.el6uek)	ELSA-2017-3508	2017-01-12
Oracle Linux version 6 (kernel)	ELSA-2017-0036	2017-01-10
Oracle Linux version 6 (kernel-uek)	ELSA-2017-3508	2017-01-12
Oracle Linux version 6 (kernel-uek)	ELSA-2017-3509	2017-01-12
Oracle Linux version 6 (kernel-uek)	ELSA-2017-3510	2017-01-12
Oracle Linux version 7 (dtrace-modules-3.8.13-118.16.2.el7uek)	ELSA-2017-3509	2017-01-12
Oracle Linux version 7 (dtrace-modules-4.1.12-61.1.25.el7uek)	ELSA-2017-3508	2017-01-12
Oracle Linux version 7 (kernel)	ELSA-2017-0086	2017-01-17
Oracle Linux version 7 (kernel-uek)	ELSA-2017-3508	2017-01-12
Oracle Linux version 7 (kernel-uek)	ELSA-2017-3509	2017-01-12
Oracle VM version 3.2 (kernel-uek)	OVMSA-2017-0006	2017-01-12
Oracle VM version 3.3 (kernel-uek)	OVMSA-2017-0005	2017-01-12
Oracle VM version 3.4 (kernel-uek)	OVMSA-2017-0004	2017-01-12