CVE-2018-6764

Name: CVE-2018-6764
Creator: NVD / NIST
Published: 2018-02-23T17:29:00.473+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.34%

Last modified Jun 17, 2026

CVE-2018-6764 is a vulnerability of currently unknown severity. util/virlog.c in libvirt does not properly determine the hostname on LXC container startup, which allows local guest OS users to bypass an intended container protection mechanism and execute arbitrary commands via a crafted NSS module.. EPSS estimates a 0.34% chance of exploitation in the next 30 days.

Description

util/virlog.c in libvirt does not properly determine the hostname on LXC container startup, which allows local guest OS users to bypass an intended container protection mechanism and execute arbitrary commands via a crafted NSS module.

Metrics

EPSS Probability

0.34%

25.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-346

Affected Software

Vendor	Product	Versions
Redhat	Libvirt	All versions
Debian	Debian Linux	8.0
Debian	Debian Linux	9.0
Redhat	Virtualization	4.0
Redhat	Enterprise Linux Desktop	7.0
Redhat	Enterprise Linux Server	7.0
Redhat	Enterprise Linux Workstation	7.0
Canonical	Ubuntu Linux	14.04
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	17.10

References

http://www.ubuntu.com/usn/USN-3576-1Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3113Third Party Advisory
https://www.debian.org/security/2018/dsa-4137Third Party Advisory
https://www.redhat.com/archives/libvir-list/2018-February/msg00239.htmlPatch, Third Party Advisory
http://www.ubuntu.com/usn/USN-3576-1Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3113Third Party Advisory
https://www.debian.org/security/2018/dsa-4137Third Party Advisory
https://www.redhat.com/archives/libvir-list/2018-February/msg00239.htmlPatch, Third Party Advisory

Timeline

Published: Feb 23, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-6764?

How severe is CVE-2018-6764?

Severity scoring for CVE-2018-6764 is pending analysis. The EPSS model estimates a 0.34% probability of exploitation in the next 30 days.

How do I fix CVE-2018-6764?

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-2018-6764?

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

Scan your code now

Source: NVD / NIST