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CVE-2014-5206 Details

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

CVSS 3.x Severity and Vector Strings:

No CVSS 3.x data is available for this CVE.

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a6138db815df5ee542d848318e5dae681590fccd	CVE
https://bugzilla.redhat.com/show_bug.cgi?id=1129662	CVE	Issue TrackingPatchThird Party Advisory
https://github.com/torvalds/linux/commit/a6138db815df5ee542d848318e5dae681590fccd	CVE	PatchThird Party Advisory
http://www.openwall.com/lists/oss-security/2014/08/13/4	CVE	Mailing ListThird Party Advisory
http://www.securityfocus.com/bid/69214	CVE	Third Party AdvisoryVDB Entry
http://www.ubuntu.com/usn/USN-2317-1	CVE	Third Party Advisory
http://www.ubuntu.com/usn/USN-2318-1	CVE	Third Party Advisory
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a6138db815df5ee542d848318e5dae681590fccd	[email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=1129662	[email protected]	Issue TrackingPatchThird Party Advisory
https://github.com/torvalds/linux/commit/a6138db815df5ee542d848318e5dae681590fccd	[email protected]	PatchThird Party Advisory
http://www.openwall.com/lists/oss-security/2014/08/13/4	[email protected]	Mailing ListThird Party Advisory
http://www.securityfocus.com/bid/69214	[email protected]	Third Party AdvisoryVDB Entry
http://www.ubuntu.com/usn/USN-2317-1	[email protected]	Third Party Advisory
http://www.ubuntu.com/usn/USN-2318-1	[email protected]	Third Party Advisory

see all 14 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-269	Improper Privilege Management	[email protected]

Affected Products

Product	Versions
linux linux kernel	>= 3.8, < 3.10.55 >= 3.11, < 3.12.27 >= 3.13, < 3.14.19 >= 3.15, < 3.16.3
CPE cpe:2.3:o:linux:linux_kernel:::::::: Remediation No remediation found in references.
canonical ubuntu linux	12.04 14.04
CPE cpe:2.3:o:canonical:ubuntu_linux:12.04::::esm::: cpe:2.3:o:canonical:ubuntu_linux:14.04::::esm::: Remediation No remediation found in references.

Change History

10 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
May 6, 2026	Status Change	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Nov 7, 2023	CVE Modified	[email protected]
Aug 25, 2023	Reanalysis	[email protected]
Aug 14, 2020	Modified Analysis	[email protected]
Jan 7, 2017	CVE Modified	[email protected]
Nov 14, 2014	CVE Modified	[email protected]
Aug 18, 2014	Initial Analysis	[email protected]