What’s Vulnerable › Vulnerabilities

CVE-2018-6764

• Severity: high (CVSS 7.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-02-23 · updated 2026-06-17
• Weakness: CWE-346

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.

Affected products

• Canonical Ubuntu Linux: 14.04, 16.04, 17.10
• Debian Linux: 8.0, 9.0
• RedHat Enterprise Linux Desktop: 7.0
• RedHat Enterprise Linux Server: 7.0
• RedHat Enterprise Linux Workstation: 7.0
• libvirt: all versions
• RedHat Virtualization: 4.0

References

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

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