CVE-2016-6197

CVE Details

Release Date:	2016-07-11
Impact:	Moderate	What is this?

Description

fs/overlayfs/dir.c in the OverlayFS filesystem implementation in theLinux kernel before 4.6 does not properly verify the upper dentry before proceeding with unlink and rename system-call processing, which allows local users to cause a denial of service (system crash) via a rename system call that specifies a self-hardlink.

See more information about CVE-2016-6197 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:	4.7
Vector String:	AV:L/AC:M/Au:N/C:N/I:N/A:C
Version:	2.0
Attack Vector:	Local
Attack Complexity:	Medium
Authentication:	None
Confidentiality Impact:	None
Integrity Impact:	None
Availability Impact:	Complete

Errata information

Platform	Errata	Release Date
Oracle Linux version 6 (dtrace-modules-4.1.12-37.6.1.el6uek)	ELSA-2016-3587	2016-07-29
Oracle Linux version 6 (kernel-uek)	ELSA-2016-3587	2016-07-29
Oracle Linux version 7 (dtrace-modules-4.1.12-37.6.1.el7uek)	ELSA-2016-3587	2016-07-29
Oracle Linux version 7 (kernel-uek)	ELSA-2016-3587	2016-07-29
Oracle VM version 3.4 (kernel-uek)	OVMSA-2016-0091	2016-07-29