Vulnerability CVE-2018-17159
Published: 2018-12-04

Description:
In FreeBSD before 11.2-STABLE(r340854) and 11.2-RELEASE-p5, the NFS server lacks a bounds check in the READDIRPLUS NFS request. Unprivileged remote users with access to the NFS server can cause a resource exhaustion by forcing the server to allocate an arbitrarily large memory allocation.

Type:

CWE-400

 (Uncontrolled Resource Consumption ('Resource Exhaustion'))

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.8/10
6.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Complete
Affected software
Freebsd -> Freebsd 

 References:
http://www.securityfocus.com/bid/106192
http://www.securitytracker.com/id/1042164
https://secuniaresearch.flexerasoftware.com/secunia_research/2018-24/
https://security.freebsd.org/advisories/FreeBSD-SA-18:13.nfs.asc
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