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CVE-2014-5206

nvd nist
Published: Aug 18, 2014Modified: May 6, 2026

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7.2
Vector
AV:L/AC:L/Au:N/C:C/I:C/A:C
Exploitability: 3.9 / Impact: 10.0
Source: NVD

Description

The do_remount function in fs/namespace.c in the Linux kernel through 3.16.1 does not maintain the MNT_LOCK_READONLY bit across a remount of a bind mount, which allows local users to bypass an intended read-only restriction and defeat certain sandbox protection mechanisms via a "mount -o remount" command within a user namespace.

Affected (6)

Linux
1 product
Linux Kernel
Canonical
1 product
Ubuntu Linux
Configuration A
4 vulnerable
Vulnerable SoftwareAffected Versions
Linux
Linux Kernel
From 3.11 to 3.12.27
Linux Kernel
From 3.13 to 3.14.19
Linux Kernel
From 3.15 to 3.16.3
Linux Kernel
From 3.8 to 3.10.55
Configuration B
2 vulnerable
Vulnerable SoftwareAffected Versions
Canonical
Ubuntu Linux
Version 12.04
Ubuntu Linux
Version 14.04

Related CWEs

CWE-269
Improper Privilege Management
The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.

References (14)

Source: cve@mitre.org
Source: cve@mitre.org
Mailing ListThird Party Advisory
Source: cve@mitre.org
Third Party AdvisoryVDB Entry
Source: cve@mitre.org
Third Party Advisory
Source: cve@mitre.org
Third Party Advisory
Source: cve@mitre.org
Issue TrackingPatchThird Party Advisory
Source: cve@mitre.org
PatchThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party AdvisoryVDB Entry
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Issue TrackingPatchThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchThird Party Advisory

Timeline

No history available yet.