CVE-2018-17158

Name: CVE-2018-17158
Creator: NVD / NIST
Published: 2018-12-04T15:29:00.307+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 4.41%

Last modified Jun 17, 2026

CVE-2018-17158 is a vulnerability of currently unknown severity. In FreeBSD before 11.2-STABLE(r340854) and 11.2-RELEASE-p5, an integer overflow error can occur when handling the client address length field in an NFSv4 request. Unprivileged remote users with access to the NFS server can crash the system by sending a specially crafted NFSv4 request.. EPSS estimates a 4.41% chance of exploitation in the next 30 days.

Description

In FreeBSD before 11.2-STABLE(r340854) and 11.2-RELEASE-p5, an integer overflow error can occur when handling the client address length field in an NFSv4 request. Unprivileged remote users with access to the NFS server can crash the system by sending a specially crafted NFSv4 request.

Metrics

EPSS Probability

4.41%

90.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-190

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-2018-17158?

How severe is CVE-2018-17158?

Severity scoring for CVE-2018-17158 is pending analysis. The EPSS model estimates a 4.41% probability of exploitation in the next 30 days.

How do I fix CVE-2018-17158?

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-2018-17158?

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

Scan your code now

Source: NVD / NIST