CVE-2014-5206 Detail

Current 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.


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  N/A
NVD score not yet provided.


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Hyperlink Resource
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=a6138db815df5ee542d848318e5dae681590fccd Patch 
http://www.openwall.com/lists/oss-security/2014/08/13/4
http://www.securityfocus.com/bid/69214
http://www.ubuntu.com/usn/USN-2317-1
http://www.ubuntu.com/usn/USN-2318-1
https://bugzilla.redhat.com/show_bug.cgi?id=1129662 Patch 
https://github.com/torvalds/linux/commit/a6138db815df5ee542d848318e5dae681590fccd Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-264 Permissions, Privileges, and Access Controls cwe source acceptance level NIST  

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2014-5206
NVD Published Date:
08/18/2014
NVD Last Modified:
01/06/2017
Source:
MITRE