Vulnerability CVE-2014-7970
Published: 2014-10-13

Description:
The pivot_root implementation in fs/namespace.c in the Linux kernel through 3.17 does not properly interact with certain locations of a chroot directory, which allows local users to cause a denial of service (mount-tree loop) via . (dot) values in both arguments to the pivot_root system call.

Type:

CWE-399

 (Resource Management Errors)

CVSS2 => (AV:L/AC:L/Au:N/C:N/I:N/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.9/10
6.9/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Complete
Affected software
Novell -> Suse linux 
Novell -> Suse linux enterprise server 
Linux -> Linux kernel 
Canonical -> Ubuntu linux 

 References:
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.html
http://www.openwall.com/lists/oss-security/2014/10/08/21
http://www.securityfocus.com/bid/70319
http://www.securitytracker.com/id/1030991
http://www.spinics.net/lists/linux-fsdevel/msg79153.html
http://www.ubuntu.com/usn/USN-2419-1
http://www.ubuntu.com/usn/USN-2420-1
http://www.ubuntu.com/usn/USN-2513-1
http://www.ubuntu.com/usn/USN-2514-1
https://access.redhat.com/errata/RHSA-2017:1842
https://access.redhat.com/errata/RHSA-2017:2077
https://bugzilla.redhat.com/show_bug.cgi?id=1151095
https://exchange.xforce.ibmcloud.com/vulnerabilities/96921
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0d0826019e529f21c84687521d03f60cd241ca7d
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