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CVE-2014-5206 Detail

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.


Metrics

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CVSS 4.0 Severity and Vector Strings:

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

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a6138db815df5ee542d848318e5dae681590fccd
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a6138db815df5ee542d848318e5dae681590fccd
http://www.openwall.com/lists/oss-security/2014/08/13/4 Mailing List  Third Party Advisory 
http://www.openwall.com/lists/oss-security/2014/08/13/4 Mailing List  Third Party Advisory 
http://www.securityfocus.com/bid/69214 Third Party Advisory  VDB Entry 
http://www.securityfocus.com/bid/69214 Third Party Advisory  VDB Entry 
http://www.ubuntu.com/usn/USN-2317-1 Third Party Advisory 
http://www.ubuntu.com/usn/USN-2317-1 Third Party Advisory 
http://www.ubuntu.com/usn/USN-2318-1 Third Party Advisory 
http://www.ubuntu.com/usn/USN-2318-1 Third Party Advisory 
https://bugzilla.redhat.com/show_bug.cgi?id=1129662 Issue Tracking  Patch  Third Party Advisory 
https://bugzilla.redhat.com/show_bug.cgi?id=1129662 Issue Tracking  Patch  Third Party Advisory 
https://github.com/torvalds/linux/commit/a6138db815df5ee542d848318e5dae681590fccd Patch  Third Party Advisory 
https://github.com/torvalds/linux/commit/a6138db815df5ee542d848318e5dae681590fccd Patch  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-269 Improper Privilege Management cwe source acceptance level NIST  

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Change History

8 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2014-5206
NVD Published Date:
08/18/2014
NVD Last Modified:
11/20/2024
Source:
MITRE