CVE-2018-6917

Name: CVE-2018-6917
Creator: NVD / NIST
Published: 2018-04-04T14:29:00.247+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.03%

Last modified Jun 17, 2026

CVE-2018-6917 is a vulnerability of currently unknown severity. In FreeBSD before 11.1-STABLE, 11.1-RELEASE-p9, 10.4-STABLE, 10.4-RELEASE-p8 and 10.3-RELEASE-p28, insufficient validation of user-provided font parameters can result in an integer overflow, leading to the use of arbitrary kernel memory as glyph data. Unprivileged users may be able to access privileged kernel data.. EPSS estimates a 2.03% chance of exploitation in the next 30 days.

Description

In FreeBSD before 11.1-STABLE, 11.1-RELEASE-p9, 10.4-STABLE, 10.4-RELEASE-p8 and 10.3-RELEASE-p28, insufficient validation of user-provided font parameters can result in an integer overflow, leading to the use of arbitrary kernel memory as glyph data. Unprivileged users may be able to access privileged kernel data.

Metrics

EPSS Probability

2.03%

78.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-190

Affected Software

Vendor	Product	Versions
Freebsd	Freebsd	>= 10.0, < 10.4
Freebsd	Freebsd	>= 11.0, < 11.1

References

http://www.securityfocus.com/bid/103668Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1040629Third Party Advisory, VDB Entry
https://security.FreeBSD.org/advisories/FreeBSD-SA-18:04.vt.ascVendor Advisory
http://www.securityfocus.com/bid/103668Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1040629Third Party Advisory, VDB Entry
https://security.FreeBSD.org/advisories/FreeBSD-SA-18:04.vt.ascVendor Advisory

Timeline

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

Frequently Asked Questions

What is CVE-2018-6917?

How severe is CVE-2018-6917?

Severity scoring for CVE-2018-6917 is pending analysis. The EPSS model estimates a 2.03% probability of exploitation in the next 30 days.

How do I fix CVE-2018-6917?

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-2018-6917?

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

Scan your code now

Source: NVD / NIST