CVE-2011-0011 (GCVE-0-2011-0011)
Vulnerability from cvelistv5 – Published: 2012-06-21 15:00 – Updated: 2024-08-06 21:36
VLAI
EPSS
VEX
Summary
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.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
12 references
| URL | Tags |
|---|---|
| http://secunia.com/advisories/43733 | third-party-advisoryx_refsource_SECUNIA |
| http://www.openwall.com/lists/oss-security/2011/01/11/1 | mailing-listx_refsource_MLIST |
| http://www.openwall.com/lists/oss-security/2011/01/12/2 | mailing-listx_refsource_MLIST |
| http://secunia.com/advisories/44393 | third-party-advisoryx_refsource_SECUNIA |
| http://www.openwall.com/lists/oss-security/2011/01/10/3 | mailing-listx_refsource_MLIST |
| http://rhn.redhat.com/errata/RHSA-2011-0345.html | vendor-advisoryx_refsource_REDHAT |
| http://www.osvdb.org/70992 | vdb-entryx_refsource_OSVDB |
| https://exchange.xforce.ibmcloud.com/vulnerabilit… | vdb-entryx_refsource_XF |
| http://secunia.com/advisories/42830 | third-party-advisoryx_refsource_SECUNIA |
| http://ubuntu.com/usn/usn-1063-1 | vendor-advisoryx_refsource_UBUNTU |
| https://bugs.launchpad.net/ubuntu/+source/libvirt… | x_refsource_MISC |
| http://secunia.com/advisories/43272 | third-party-advisoryx_refsource_SECUNIA |
Date Public
2011-01-04 00:00
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"descriptions": [
{
"lang": "en",
"value": "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."
},
{
"lang": "es",
"value": "qemu-kvm antes de v0.11.0 deshabilita la autenticaci\u00f3n VNC cuando la contrase\u00f1a es eliminada, lo que permite a atacantes remotos eludir la autenticaci\u00f3n y establecer sesiones VNC."
}
],
"id": "CVE-2011-0011",
"lastModified": "2026-04-29T01:13:23.040",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "HIGH",
"accessVector": "ADJACENT_NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 4.3,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:A/AC:H/Au:N/C:P/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 3.2,
"impactScore": 6.4,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
]
},
"published": "2012-06-21T15:55:05.863",
"references": [
{
"source": "secalert@redhat.com",
"url": "http://rhn.redhat.com/errata/RHSA-2011-0345.html"
},
{
"source": "secalert@redhat.com",
"tags": [
"Vendor Advisory"
],
"url": "http://secunia.com/advisories/42830"
},
{
"source": "secalert@redhat.com",
"tags": [
"Vendor Advisory"
],
"url": "http://secunia.com/advisories/43272"
},
{
"source": "secalert@redhat.com",
"tags": [
"Vendor Advisory"
],
"url": "http://secunia.com/advisories/43733"
},
{
"source": "secalert@redhat.com",
"tags": [
"Vendor Advisory"
],
"url": "http://secunia.com/advisories/44393"
},
{
"source": "secalert@redhat.com",
"url": "http://ubuntu.com/usn/usn-1063-1"
},
{
"source": "secalert@redhat.com",
"url": "http://www.openwall.com/lists/oss-security/2011/01/10/3"
},
{
"source": "secalert@redhat.com",
"url": "http://www.openwall.com/lists/oss-security/2011/01/11/1"
},
{
"source": "secalert@redhat.com",
"url": "http://www.openwall.com/lists/oss-security/2011/01/12/2"
},
{
"source": "secalert@redhat.com",
"url": "http://www.osvdb.org/70992"
},
{
"source": "secalert@redhat.com",
"url": "https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/697197"
},
{
"source": "secalert@redhat.com",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/65215"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://rhn.redhat.com/errata/RHSA-2011-0345.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "http://secunia.com/advisories/42830"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "http://secunia.com/advisories/43272"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "http://secunia.com/advisories/43733"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "http://secunia.com/advisories/44393"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://ubuntu.com/usn/usn-1063-1"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.openwall.com/lists/oss-security/2011/01/10/3"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.openwall.com/lists/oss-security/2011/01/11/1"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.openwall.com/lists/oss-security/2011/01/12/2"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.osvdb.org/70992"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/697197"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/65215"
}
],
"sourceIdentifier": "secalert@redhat.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-287"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-01-13T21:01:29+00:00",
"cve": "CVE-2011-0011",
"id": "CVE-2011-0011",
"initial_release_date": "2011-01-07T00:00:00+00:00",
"product_status:fixed": "20",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "qemu-kvm: Setting VNC password to empty string silently disables all authentication",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2011/cve-2011-0011.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "important",
"current_release_date": "2023-02-15T05:55:18Z",
"cve": "CVE-2011-0011",
"id": "CVE-2011-0011",
"initial_release_date": "2023-02-15T05:55:18Z",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2011-0011",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2011-0011.json",
"version": "2"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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