NVD

Id
32955  
Name
CVE-2014-5206  
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.  
Reject
 
CVSS Version
2  
CVSS Score
7.2  
Severity
High  
CVSS Base Score
7.2  
CVSS Impact Subscore
10  
CVSS Exploit Subscore
3.9  
CVSS Vector
(AV:L/AC:L/Au:N/C:C/I:C/A:C)  
Pub Date
2017-01-19  
Published
2014-08-18  
Modified Date
2017-01-06  
Seq
2014-5206  

Actions

Related NVD References

Id NVD Id NVD No. Reference Actions
172999 32955 CVE-2014-5206 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=a6138db815df5ee542d848318e5dae681590fccd  View
173000 32955 CVE-2014-5206 [oss-security] 20140813 Re: CVE Request: ro bind mount bypass using user namespaces  View
173001 32955 CVE-2014-5206 69214  View
173002 32955 CVE-2014-5206 USN-2317-1  View
173003 32955 CVE-2014-5206 USN-2318-1  View
173004 32955 CVE-2014-5206 https://bugzilla.redhat.com/show_bug.cgi?id=1129662  View
173005 32955 CVE-2014-5206 https://github.com/torvalds/linux/commit/a6138db815df5ee542d848318e5dae681590fccd  View

Related JVN

Id Name Title Summary Cveinfo Name Cveinfo Id Nvdinfo Name Nvdinfo Id Cvssv2 Cvssv3 Jvnurl Published Date Last Updated Date Actions
14964 JVNDB-2014-003839 Linux Kernel の fs/namespace.c の do_remount 関数における読み取り専用の制限を回避される脆弱性 Linux Kernel の fs/namespace.c の do_remount 関数は、バインドマウントの再マウントにわたり MNT_LOCK_READONLY ビットを維持しないため、読み取り専用の制限を回避される、および特定のサンドボックス保護メカニズムを破られる脆弱性が存在します。 CVE-2014-5206 72495 CVE-2014-5206 32955 7.2 http://jvndb.jvn.jp/ja/contents/2014/JVNDB-2014-003839.html 2014-07-28 2014-08-19 View