CVE-2014-5206
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2014-5206
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2014-5206.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2014-5206
- Downstream
- Published
- 2014-08-18T11:15:27Z
- Modified
- 2025-08-09T19:01:28Z
- Summary
- [none]
- Details
-
The doremount function in fs/namespace.c in the Linux kernel through 3.16.1 does not maintain the MNTLOCK_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.
- References
-
- 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
- https://github.com/torvalds/linux/commit/a6138db815df5ee542d848318e5dae681590fccd
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a6138db815df5ee542d848318e5dae681590fccd