CVE-2016-5008

Published: Jul 13, 2016Modified: May 6, 2026

9.8

Vector

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

Exploitability: 3.9 / Impact: 5.9

Source: NVD

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.

Affected (2)

Products: Redhat: Libvirt · Debian: Debian Linux

1 product

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Redhat Libvirt	Up to 1.3.5

Configuration B

1 vulnerable

Vulnerable Software	Affected Versions
Debian Debian Linux	Version 8.0

Related CWEs

CWE-284

Improper Access Control

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

References (22)

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