CVE-2020-14323 (GCVE-0-2020-14323)
Vulnerability from cvelistv5 – Published: 2020-10-29 00:00 – Updated: 2024-08-04 12:39
VLAI
EPSS
VEX
Summary
A null pointer dereference flaw was found in samba's Winbind service in versions before 4.11.15, before 4.12.9 and before 4.13.1. A local user could use this flaw to crash the winbind service causing denial of service.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-04-22 20:46 UTC
CWE
Assigner
References
10 references
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1891685 | |
| https://www.samba.org/samba/security/CVE-2020-143… | |
| http://lists.opensuse.org/opensuse-security-annou… | vendor-advisory |
| http://lists.opensuse.org/opensuse-security-annou… | vendor-advisory |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisory |
| https://security.netapp.com/advisory/ntap-2020110… | |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisory |
| https://lists.debian.org/debian-lts-announce/2020… | mailing-list |
| https://security.gentoo.org/glsa/202012-24 | vendor-advisory |
| https://lists.debian.org/debian-lts-announce/2024… | mailing-list |
Impacted products
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"value": "Se encontr\u00f3 uno fallo de desreferencia del puntero null en el servicio Winbind de samba en versiones anteriores a 4.11.15, 4.12.9 y 4.13.1.\u0026#xa0;Un usuario local podr\u00eda utilizar este fallo para bloquear el servicio winbind causando una denegaci\u00f3n de servicio"
}
],
"id": "CVE-2020-14323",
"lastModified": "2024-11-21T05:03:00.507",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "LOW",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 2.1,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 3.9,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"cvssData": {
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"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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},
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{
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"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
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"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6,
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
]
},
"published": "2020-10-29T20:15:17.117",
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{
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},
{
"source": "secalert@redhat.com",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JE2M4FE3N3EDXVG4UKSVFPL7SQUGFFDP/"
},
{
"source": "secalert@redhat.com",
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},
{
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],
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},
{
"source": "secalert@redhat.com",
"tags": [
"Third Party Advisory"
],
"url": "https://security.netapp.com/advisory/ntap-20201103-0001/"
},
{
"source": "secalert@redhat.com",
"tags": [
"Vendor Advisory"
],
"url": "https://www.samba.org/samba/security/CVE-2020-14323.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
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},
{
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{
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{
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{
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}
],
"sourceIdentifier": "secalert@redhat.com",
"vulnStatus": "Modified",
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}
],
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},
{
"description": [
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"value": "CWE-476"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-02-23T18:17:49+00:00",
"cve": "CVE-2020-14323",
"id": "CVE-2020-14323",
"initial_release_date": "2020-10-29T00:00:00+00:00",
"product_status:fixed": "1587",
"product_status:known_affected": "14",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "samba: Unprivileged user can crash winbind",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2020/cve-2020-14323.json",
"version": "3"
},
"suse_vex": {
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"current_release_date": "2026-09-03T00:51:56Z",
"cve": "CVE-2020-14323",
"id": "CVE-2020-14323",
"initial_release_date": "2023-02-15T03:57:50Z",
"product_status:known_affected": "320",
"product_status:known_not_affected": "404",
"product_status:recommended": "4425",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2020-14323",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2020-14323.json",
"version": "55"
},
"vulnrichment": {
"containers": {
"adp": [
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"providerMetadata": {
"dateUpdated": "2024-08-04T12:39:36.466Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
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],
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],
"title": "CVE Program Container"
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{
"metrics": [
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"baseScore": 5.5,
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}
},
{
"other": {
"content": {
"id": "CVE-2020-14323",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-04-22T20:46:57.190199Z",
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}
],
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],
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},
{
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],
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{
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{
"name": "[debian-lts-announce] 20240422 [SECURITY] [DLA 3792-1] samba security update",
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"url": "https://lists.debian.org/debian-lts-announce/2024/04/msg00015.html"
}
]
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},
"cveMetadata": {
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"assignerShortName": "redhat",
"cveId": "CVE-2020-14323",
"datePublished": "2020-10-29T00:00:00.000Z",
"dateReserved": "2020-06-17T00:00:00.000Z",
"dateUpdated": "2024-08-04T12:39:36.466Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
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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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