CVE-2014-5206
HighThe 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 2.0 score
7.2
AV:L/AC:L/Au:N/C:C/I:C/A:C
Weakness type
CWE-269CVE-2014-5206 is classified as CWE-269
See CWE-269 on MITRE CWE for full details on this weakness type.
References
The following references provide additional information about CVE-2014-5206 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
-
Mailing List Third Party Advisory
-
Securityfocushttp://www.securityfocus.com/bid/69214Third Party Advisory VDB Entry
-
Ubuntu Securityhttp://www.ubuntu.com/usn/USN-2317-1Third Party Advisory
-
Ubuntu Securityhttp://www.ubuntu.com/usn/USN-2318-1Third Party Advisory
-
PatchKernel patch commithttp://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a6138db815df5ee542d848318e5dae681590fccd
-
PatchKernel patch commithttps://bugzilla.redhat.com/show_bug.cgi?id=1129662
-
PatchKernel patch commithttps://github.com/torvalds/linux/commit/a6138db815df5ee542d848318e5dae681590fccd
Frequently asked questions
-
What is CVE-2014-5206?
CVE-2014-5206 is a High severity Linux kernel vulnerability with a CVSS score of 7.2 out of 10 . CVE-2014-5206 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
-
What is the CVSS score for CVE-2014-5206?
CVE-2014-5206 has a CVSS score of 7.2 out of 10, rated High severity (CVSS 2.0). The vector string is
AV:L/AC:L/Au:N/C:C/I:C/A:C. -
Is there a patch available for CVE-2014-5206?
No patch is currently available for CVE-2014-5206. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
-
Is CVE-2014-5206 actively exploited?
No — CVE-2014-5206 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.