Vulnerability CVE-2016-5008
Published: 2016-07-13

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.

Type:

CWE-284

 (Improper Access Control)

CVSS2 => (AV:N/AC:M/Au:N/C:N/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
Partial
None
Affected software
Redhat -> Libvirt 
Debian -> Debian linux 

 References:
http://lists.opensuse.org/opensuse-updates/2016-07/msg00054.html
http://lists.opensuse.org/opensuse-updates/2016-07/msg00055.html
http://lists.opensuse.org/opensuse-updates/2016-08/msg00024.html
http://rhn.redhat.com/errata/RHSA-2016-2577.html
http://security.libvirt.org/2016/0001.html
http://www.debian.org/security/2016/dsa-3613
http://www.securityfocus.com/bid/91562
https://bugzilla.redhat.com/show_bug.cgi?id=1180092
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DZZMOMRXNPALA34XDF5NK363KDLAYSTL/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QTQF6LXKEEMJG4VOOCIAPJAD6ACBYP4W/
https://usn.ubuntu.com/3576-1/
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