CVE-2016-5008

9.8 CRITICAL

Published: July 13, 2016 Modified: May 06, 2026

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.

AI Explanation

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

http://lists.opensuse.org/opensuse-updates/2016-07/msg00054.html

Source: secalert@redhat.com

http://lists.opensuse.org/opensuse-updates/2016-07/msg00055.html

Source: secalert@redhat.com

http://lists.opensuse.org/opensuse-updates/2016-08/msg00024.html

Source: secalert@redhat.com

http://rhn.redhat.com/errata/RHSA-2016-2577.html

Source: secalert@redhat.com

http://security.libvirt.org/2016/0001.html

Source: secalert@redhat.com

Vendor Advisory

http://www.debian.org/security/2016/dsa-3613

Source: secalert@redhat.com

http://www.securityfocus.com/bid/91562

Source: secalert@redhat.com

https://bugzilla.redhat.com/show_bug.cgi?id=1180092

Source: secalert@redhat.com

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DZZMOMRXNPALA34XDF5NK363KDLAYSTL/

Source: secalert@redhat.com

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QTQF6LXKEEMJG4VOOCIAPJAD6ACBYP4W/

Source: secalert@redhat.com

https://usn.ubuntu.com/3576-1/

Source: secalert@redhat.com

http://lists.opensuse.org/opensuse-updates/2016-07/msg00054.html