Vulnerability CVE-2017-9059
Published: 2017-05-18

Description:
The NFSv4 implementation in the Linux kernel through 4.11.1 allows local users to cause a denial of service (resource consumption) by leveraging improper channel callback shutdown when unmounting an NFSv4 filesystem, aka a "module reference and kernel daemon" leak.

Type:

CWE-404

 (Improper Resource Shutdown or Release)

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
Linux -> Linux kernel 

 References:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c70422f760c120480fee4de6c38804c72aa26bc1
http://www.securityfocus.com/bid/98551
https://bugzilla.redhat.com/show_bug.cgi?id=1451386
https://github.com/torvalds/linux/commit/c70422f760c120480fee4de6c38804c72aa26bc1
https://www.spinics.net/lists/linux-nfs/msg63334.html
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