CVE-2014-5206

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.

CVSS v2.0 7.2 HIGH

7.2^/10

CVSS v2.0 : HIGH

Vector : AV:L/AC:L/Au:N/C:C/I:C/A:C

Exploitability : 3.9 / Impact : 10.0

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
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.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-2318-1	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

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

Configuration 2 (hide)

OR	cpe:2.3:o:canonical:ubuntu_linux:12.04::::esm:::
	cpe:2.3:o:canonical:ubuntu_linux:14.04::::esm:::

History

No history.

Information

Published : 2014-08-18 11:15

Updated : 2023-11-07 02:20

NVD link : CVE-2014-5206

Mitre link : CVE-2014-5206

CVE.ORG link : CVE-2014-5206

JSON object : View

Products Affected

canonical

ubuntu_linux

linux

linux_kernel

CWE

CWE-269

Improper Privilege Management

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