CVE-2016-5008

libvirt: Setting empty VNC password allows access to unauthorized users

Published Jul 13, 2016 CVSS 3.0 · 9.8 Critical EPSS 3.7% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-541-1 libvirt security update
Debian DSA Debian DSA DSA-3613-1 libvirt security update
EUVD EUVD EUVD-2016-5967 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.
Ubuntu USN Ubuntu USN USN-3576-1 libvirt vulnerabilities
History
Type Values Removed Values Added
Metrics epss

{'score': 0.01552}

epss

{'score': 0.02531}

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Aug 6, 2024, 12:46 AM
Reserved
May 24, 2016, 12:00 AM
Status
Modified
Published
Jul 13, 2016, 3:59 PM
Modified
Jun 17, 2026, 12:48 AM
Severity
Moderate
Public date
Jan 18, 2015, 12:00 AM