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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…
High7.2EPSS 0.37%
- Published
- Updated
- Reserved
- Assigned by
- mitre
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High7.2 | AV:L/AC:L/Au:N/C:C/I:C/A:C |
- EPSS (exploitation in 30 days)
- 0.37% · top 69% of all CVEs (4 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.2.
Weakness
Affected products
n/a
- affected n/a
References (7)
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a6138db815df5ee542d848318e5dae681590fccd (opens in a new tab)x_refsource_CONFIRMx_transferred
- USN-2318-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- 69214 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=1129662 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://github.com/torvalds/linux/commit/a6138db815df5ee542d848318e5dae681590fccd (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20140813 Re: CVE Request: ro bind mount bypass using user namespaces (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- USN-2317-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2014-5206)Record last updated .