Vulnerability CVE-2016-4581
Published: 2016-05-23

Description:
fs/pnode.c in the Linux kernel before 4.5.4 does not properly traverse a mount propagation tree in a certain case involving a slave mount, which allows local users to cause a denial of service (NULL pointer dereference and OOPS) via a crafted series of mount system calls.

Type:

CWE-Other

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
Oracle -> Linux 
Linux -> Linux kernel 
Canonical -> Ubuntu linux 

 References:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5ec0811d30378ae104f250bfc9b3640242d81e3f
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html
http://rhn.redhat.com/errata/RHSA-2016-2574.html
http://rhn.redhat.com/errata/RHSA-2016-2584.html
http://www.debian.org/security/2016/dsa-3607
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.4
http://www.openwall.com/lists/oss-security/2016/05/11/2
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html
http://www.securityfocus.com/bid/90607
http://www.ubuntu.com/usn/USN-2989-1
http://www.ubuntu.com/usn/USN-2998-1
http://www.ubuntu.com/usn/USN-3000-1
http://www.ubuntu.com/usn/USN-3001-1
http://www.ubuntu.com/usn/USN-3002-1
http://www.ubuntu.com/usn/USN-3003-1
http://www.ubuntu.com/usn/USN-3004-1
http://www.ubuntu.com/usn/USN-3005-1
http://www.ubuntu.com/usn/USN-3006-1
http://www.ubuntu.com/usn/USN-3007-1
https://bugzilla.redhat.com/show_bug.cgi?id=1333712
https://github.com/torvalds/linux/commit/5ec0811d30378ae104f250bfc9b3640242d81e3f
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