Public Date:
668589: CVE-2011-0011 qemu-kvm: Setting VNC password to empty string silently disables all authentication

The MITRE CVE dictionary describes this issue as:

qemu-kvm before 0.11.0 disables VNC authentication when the password is cleared, which allows remote attackers to bypass authentication and establish VNC sessions.

Find out more about CVE-2011-0011 from the MITRE CVE dictionary dictionary and NIST NVD.


This issue does not affect versions of kvm package as shipped with Red Hat Enterprise Linux 5.

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

Base Score 4.3
Base Metrics AV:A/AC:H/Au:N/C:P/I:P/A:P
Access Vector Adjacent Network
Access Complexity High
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux version 6 (qemu-kvm) RHSA-2011:0345 2011-03-10