CVE-2018-17159

Name: CVE-2018-17159
Creator: NVD / NIST
Published: 2018-12-04T15:29:00.353+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 4.21%

Last modified Jun 17, 2026

CVE-2018-17159 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 4.21% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

4.21%

89.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-400

Affected Software

Vendor	Product	Versions	Update
Freebsd	Freebsd	< 11.2	—
Freebsd	Freebsd	11.2	P5

References

http://www.securityfocus.com/bid/106192Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1042164Third Party Advisory, VDB Entry
https://secuniaresearch.flexerasoftware.com/secunia_research/2018-24/Third Party Advisory
https://security.freebsd.org/advisories/FreeBSD-SA-18:13.nfs.ascThird Party Advisory
http://www.securityfocus.com/bid/106192Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1042164Third Party Advisory, VDB Entry
https://secuniaresearch.flexerasoftware.com/secunia_research/2018-24/Third Party Advisory
https://security.freebsd.org/advisories/FreeBSD-SA-18:13.nfs.ascThird Party Advisory

Timeline

Published: Dec 4, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-17159?

How severe is CVE-2018-17159?

Severity scoring for CVE-2018-17159 is pending analysis. The EPSS model estimates a 4.21% probability of exploitation in the next 30 days.

How do I fix CVE-2018-17159?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-17159?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST