CVE-2014-7975

CVE Details

Release Date:	2014-10-08
Impact:	Low	What is this?

Description

The do_umount function in fs/namespace.c in the Linux kernel through3.17 does not require the CAP_SYS_ADMIN capability for do_remount_sb calls that change the root filesystem to read-only, which allows local users to cause a denial of service (loss of writability) by making certain unshare system calls, clearing the / MNT_LOCKED flag, and making an MNT_FORCE umount system call.

See more information about CVE-2014-7975 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:	2.9
Vector String:	AV:A/AC:M/Au:N/C:N/I:N/A:P
Version:	2.0
Attack Vector:	Adjacent Network
Attack Complexity:	Medium
Authentication:	None
Confidentiality Impact:	None
Integrity Impact:	None
Availability Impact:	Partial

Errata information

Platform	Errata	Release Date
Oracle Linux version 6 (dtrace-modules-3.8.13-68.el6uek)	ELSA-2015-3012	2015-03-19
Oracle Linux version 6 (kernel-uek)	ELSA-2015-3012	2015-03-19
Oracle Linux version 7 (dtrace-modules-3.8.13-68.el7uek)	ELSA-2015-3012	2015-03-19
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-2015-3012	2015-03-19
Oracle VM version 3.3 (kernel-uek)	OVMSA-2015-0040	2015-04-06