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.Referenceshttp://secunia.com/advisories/43733http://www.openwall.com/lists/oss-security/2011/01/11/1http://www.openwall.com/lists/oss-security/2011/01/12/2http://secunia.com/advisories/44393http://www.openwall.com/lists/oss-security/2011/01/10/3http://rhn.redhat.com/errata/RHSA-2011-0345.htmlhttp://www.osvdb.org/70992https://exchange.xforce.ibmcloud.com/vulnerabilities/65215http://secunia.com/advisories/42830http://ubuntu.com/usn/usn-1063-1https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/697197http://secunia.com/advisories/43272
