7.8high

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…

Published 8 y ago · modified 4 mo ago · JSON

CVSS
7.8
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
0.3%
percentile 26%
Public exploits
0
none known

Summary

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.

Exploit prediction (EPSS)

0.33% probability of exploitation in the next 30 days, higher than 26% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.07.8CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD2.04.6AV:L/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness

References

  • debian.org /security/2018/dsa-4137 · vendor-advisory, x_refsource_DEBIAN, x_transferred
  • access.redhat.com /errata/RHSA-2018:3113 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • redhat.com /archives/libvir-list/2018-February/msg00239.html · mailing-list, x_refsource_MLIST, x_transferred
  • ubuntu.com /usn/USN-3576-1 · vendor-advisory, x_refsource_UBUNTU, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.