Vulnerability in Canonical Ubuntu Linux
CVE-2018-6764
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (24.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 24th percentile — 24.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Canonical Ubuntu Linux — versions 14.04, 16.04, 17.10
- Debian Linux — versions 8.0, 9.0
- Red Hat Enterprise Linux Desktop — versions 7.0
- Red Hat Enterprise Linux Server — versions 7.0
- Red Hat Enterprise Linux Workstation — versions 7.0
- Red Hat Libvirt
- Red Hat Virtualization — versions 4.0
Weakness classification (CWE)
References
- www.debian.org/security/2018/dsa-4137 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2018:3113 (vendor-advisory, Third Party Advisory)
- www.redhat.com/archives/libvir-list/2018-February/msg00239.html (mailing-list, Patch, Third Party Advisory)
- www.ubuntu.com/usn/USN-3576-1 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-6764?
- CVE-2018-6764 is a high-severity vulnerability in Canonical Ubuntu Linux, classified under Origin Validation Error. CVSS score: 7.8/10. Published 2018-02-23.
- How severe is CVE-2018-6764?
- High severity. CVSS v3 base score is 7.8 out of 10.