CVE-2016-5008
Summary
| CVE | CVE-2016-5008 |
|---|---|
| State | PUBLISHED |
| Assigner | redhat |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2016-07-13 15:59:05 UTC |
| Updated | 2026-05-06 22:30:45 UTC |
| 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. |
Risk And Classification
Primary CVSS: v3.0 9.8 CRITICAL from [email protected]
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Problem Types: CWE-284 | n/a
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.0 | [email protected] | Primary | 9.8 | CRITICAL | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| 2.0 | [email protected] | Primary | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
CVSS v3.0 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v2.0 Breakdown
Access Vector
NetworkAccess Complexity
MediumAuthentication
NoneConfidentiality
NoneIntegrity
PartialAvailability
NoneAV:N/AC:M/Au:N/C:N/I:P/A:N
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Debian | Debian Linux | 8.0 | All | All | All |
| Application | Redhat | Libvirt | All | All | All | All |
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| openSUSE-SU-2016:1809-1: moderate: Security update for libvirt | af854a3a-2127-422b-91ae-364da2661108 | lists.opensuse.org | |
| libvirt CVE-2016-5008 Local Security Bypass Vulnerability | af854a3a-2127-422b-91ae-364da2661108 | www.securityfocus.com | |
| openSUSE-SU-2016:1810-1: moderate: Security update for libvirt | af854a3a-2127-422b-91ae-364da2661108 | lists.opensuse.org | |
| [SECURITY] Fedora 23 Update: libvirt-1.2.18.4-1.fc23 - package-announce - Fedora Mailing-Lists | af854a3a-2127-422b-91ae-364da2661108 | lists.fedoraproject.org | |
| Red Hat Customer Portal | af854a3a-2127-422b-91ae-364da2661108 | rhn.redhat.com | |
| openSUSE-SU-2016:1975-1: moderate: Security update for libvirt | af854a3a-2127-422b-91ae-364da2661108 | lists.opensuse.org | |
| [SECURITY] Fedora 24 Update: libvirt-1.3.3.2-1.fc24 - package-announce - Fedora Mailing-Lists | af854a3a-2127-422b-91ae-364da2661108 | lists.fedoraproject.org | |
| USN-3576-1: libvirt vulnerabilities | Ubuntu security notices | Ubuntu | af854a3a-2127-422b-91ae-364da2661108 | usn.ubuntu.com | |
| Libvirt Security Notice: LSN-2016-0001 | af854a3a-2127-422b-91ae-364da2661108 | security.libvirt.org | Vendor Advisory |
| Debian -- Security Information -- DSA-3613-1 libvirt | af854a3a-2127-422b-91ae-364da2661108 | www.debian.org | |
| 1180092 – When set/update graphics password to empty, log in guest with spice and vnc show different behaviour | af854a3a-2127-422b-91ae-364da2661108 | bugzilla.redhat.com | |
| [SECURITY] Fedora 24 Update: libvirt-1.3.3.2-1.fc24 - package-announce - Fedora Mailing-Lists | MITRE | lists.fedoraproject.org | |
| [SECURITY] Fedora 23 Update: libvirt-1.2.18.4-1.fc23 - package-announce - Fedora Mailing-Lists | MITRE | lists.fedoraproject.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.