CVE-2016-9576

CVE Details

Release Date:	2016-11-25
Impact:	Moderate	What is this?

Description

The blk_rq_map_user_iov function in block/blk-map.c in the Linuxkernel before 4.8.14 does not properly restrict the type of iterator, which allows local users to read or write to arbitrary kernel memory locations or cause a denial of service (use-after-free) by leveraging access to a /dev/sg device.

See more information about CVE-2016-9576 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:	6.2
Vector String:	AV:L/AC:H/Au:N/C:C/I:C/A:C
Version:	2.0
Attack Vector:	Local
Attack Complexity:	High
Authentication:	None
Confidentiality Impact:	Complete
Integrity Impact:	Complete
Availability Impact:	Complete

Errata information

Platform	Errata	Release Date
Oracle Linux version 6 (dtrace-modules-4.1.12-61.1.27.el6uek)	ELSA-2017-3514	2017-02-06
Oracle Linux version 6 (kernel)	ELSA-2017-0817	2017-03-27
Oracle Linux version 6 (kernel-uek)	ELSA-2017-3514	2017-02-06
Oracle Linux version 7 (dtrace-modules-4.1.12-61.1.27.el7uek)	ELSA-2017-3514	2017-02-06
Oracle Linux version 7 (kernel)	ELSA-2017-1842	2017-08-07
Oracle Linux version 7 (kernel)	ELSA-2017-1842-1	2017-08-15
Oracle Linux version 7 (kernel-uek)	ELSA-2017-3514	2017-02-06
Oracle VM version 3.4 (kernel-uek)	OVMSA-2017-0039	2017-02-08