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Vulnerabilities / CVE-2016-5008

critical

CVE-2016-5008

libvirt: Setting empty VNC password allows access to unauthorized users

Published Modified CWE 284
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Red Hat5.6CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

Trivy's own label is CRITICAL. Rated critical by NVD. Rated lower by Red Hat (medium), Oracle (medium), Ubuntu (low).

Description

libvirt before 2.0.0 improperly disables password checking when the password on a VNC server is set to an empty string, which allows remote attackers to bypass authentication and establish a VNC session by connecting to the server.

Affected packages and fixed versions

SourcePackageFixed in
debian 11libvirt2.0.0-1
debian 12libvirt2.0.0-1
debian 13libvirt2.0.0-1
debian 14libvirt2.0.0-1
debian 7libvirt0.9.12.3-1+deb7u2
debian 8libvirt1.2.9-9+deb8u3
echolibvirt2.0.0-1
Oracle Linux 7libvirt, libvirt-client, libvirt-daemon and 17 more2.0.0-10.el7
Red Hatlibvirt, libvirt-client, libvirt-devel and 2 moreno fix listed
ubuntu 14.04libvirt1.2.2-0ubuntu13.1.26
ubuntu 14.04-ESMlibvirt1.2.2-0ubuntu13.1.26
ubuntu 16.04libvirt1.3.1-1ubuntu10.19
Show all 46 entries from 23 sources
SourcePackageFixed in
debian 11libvirt2.0.0-1
debian 12libvirt2.0.0-1
debian 13libvirt2.0.0-1
debian 14libvirt2.0.0-1
debian 7libvirt0.9.12.3-1+deb7u2
debian 8libvirt1.2.9-9+deb8u3
echolibvirt2.0.0-1
Oracle Linux 7libvirt2.0.0-10.el7
Oracle Linux 7libvirt-client2.0.0-10.el7
Oracle Linux 7libvirt-daemon2.0.0-10.el7
Oracle Linux 7libvirt-daemon-config-network2.0.0-10.el7
Oracle Linux 7libvirt-daemon-config-nwfilter2.0.0-10.el7
Oracle Linux 7libvirt-daemon-driver-interface2.0.0-10.el7
Oracle Linux 7libvirt-daemon-driver-lxc2.0.0-10.el7
Oracle Linux 7libvirt-daemon-driver-network2.0.0-10.el7
Oracle Linux 7libvirt-daemon-driver-nodedev2.0.0-10.el7
Oracle Linux 7libvirt-daemon-driver-nwfilter2.0.0-10.el7
Oracle Linux 7libvirt-daemon-driver-qemu2.0.0-10.el7
Oracle Linux 7libvirt-daemon-driver-secret2.0.0-10.el7
Oracle Linux 7libvirt-daemon-driver-storage2.0.0-10.el7
Oracle Linux 7libvirt-daemon-kvm2.0.0-10.el7
Oracle Linux 7libvirt-daemon-lxc2.0.0-10.el7
Oracle Linux 7libvirt-devel2.0.0-10.el7
Oracle Linux 7libvirt-docs2.0.0-10.el7
Oracle Linux 7libvirt-lock-sanlock2.0.0-10.el7
Oracle Linux 7libvirt-login-shell2.0.0-10.el7
Oracle Linux 7libvirt-nss2.0.0-10.el7
Red Hatlibvirtno fix listed
Red Hatlibvirt-clientno fix listed
Red Hatlibvirt-develno fix listed
Red Hatlibvirt-lock-sanlockno fix listed
Red Hatlibvirt-pythonno fix listed
ubuntu 14.04libvirt1.2.2-0ubuntu13.1.26
ubuntu 14.04-ESMlibvirt1.2.2-0ubuntu13.1.26
ubuntu 16.04libvirt1.3.1-1ubuntu10.19
ubuntu 16.04-ESMlibvirt1.3.1-1ubuntu10.19
ubuntu 17.10libvirt2.1.0-1ubuntu1
ubuntu 18.04libvirt2.1.0-1.ubuntu1
ubuntu 18.04-ESMlibvirt2.1.0-1.ubuntu1
ubuntu 18.10libvirt2.1.0-1.ubuntu1
ubuntu 19.04libvirt2.1.0-1.ubuntu1
ubuntu 19.10libvirt2.1.0-1.ubuntu1
ubuntu 20.04libvirt2.1.0-1.ubuntu1
ubuntu 20.04-ESMlibvirt2.1.0-1.ubuntu1
ubuntu 20.10libvirt2.1.0-1.ubuntu1
ubuntu 21.04libvirt2.1.0-1.ubuntu1

References

All 17 references

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.