CVE-2019-19344 (GCVE-0-2019-19344)
Vulnerability from cvelistv5 – Published: 2020-01-21 00:00 – Updated: 2024-08-05 02:16
VLAI
EPSS
VEX
Summary
There is a use-after-free issue in all samba 4.9.x versions before 4.9.18, all samba 4.10.x versions before 4.10.12 and all samba 4.11.x versions before 4.11.5, essentially due to a call to realloc() while other local variables still point at the original buffer.
Severity
6.5 (Medium)
CWE
Assigner
References
10 references
Impacted products
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-05T02:16:47.118Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_transferred"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-19344"
},
{
"tags": [
"x_transferred"
],
"url": "https://www.samba.org/samba/security/CVE-2019-19344.html"
},
{
"tags": [
"x_transferred"
],
"url": "https://security.netapp.com/advisory/ntap-20200122-0001/"
},
{
"tags": [
"x_transferred"
],
"url": "https://www.synology.com/security/advisory/Synology_SA_20_01"
},
{
"name": "USN-4244-1",
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://usn.ubuntu.com/4244-1/"
},
{
"name": "openSUSE-SU-2020:0122",
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00055.html"
},
{
"name": "FEDORA-2020-6bd386c7eb",
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GQ6U65I2K23YJC4FESW477WL55TU3PPT/"
},
{
"name": "FEDORA-2020-f92cd0e72b",
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4ACZVNMIFQGGXNJPMHAVBN3H2U65FXQY/"
},
{
"name": "GLSA-202003-52",
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://security.gentoo.org/glsa/202003-52"
},
{
"name": "[debian-lts-announce] 20230914 [SECURITY] [DLA 3563-1] samba security update",
"tags": [
"mailing-list",
"x_transferred"
],
"url": "https://lists.debian.org/debian-lts-announce/2023/09/msg00013.html"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "samba",
"vendor": "Red Hat",
"versions": [
{
"status": "affected",
"version": "all samba 4.11.x versions before 4.11.5"
},
{
"status": "affected",
"version": "all samba 4.10.x versions before 4.10.12"
},
{
"status": "affected",
"version": "all samba 4.9.x versions before 4.9.18"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "There is a use-after-free issue in all samba 4.9.x versions before 4.9.18, all samba 4.10.x versions before 4.10.12 and all samba 4.11.x versions before 4.11.5, essentially due to a call to realloc() while other local variables still point at the original buffer."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-416",
"description": "CWE-416",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2023-09-14T16:06:25.208Z",
"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"shortName": "redhat"
},
"references": [
{
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-19344"
},
{
"url": "https://www.samba.org/samba/security/CVE-2019-19344.html"
},
{
"url": "https://security.netapp.com/advisory/ntap-20200122-0001/"
},
{
"url": "https://www.synology.com/security/advisory/Synology_SA_20_01"
},
{
"name": "USN-4244-1",
"tags": [
"vendor-advisory"
],
"url": "https://usn.ubuntu.com/4244-1/"
},
{
"name": "openSUSE-SU-2020:0122",
"tags": [
"vendor-advisory"
],
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00055.html"
},
{
"name": "FEDORA-2020-6bd386c7eb",
"tags": [
"vendor-advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GQ6U65I2K23YJC4FESW477WL55TU3PPT/"
},
{
"name": "FEDORA-2020-f92cd0e72b",
"tags": [
"vendor-advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4ACZVNMIFQGGXNJPMHAVBN3H2U65FXQY/"
},
{
"name": "GLSA-202003-52",
"tags": [
"vendor-advisory"
],
"url": "https://security.gentoo.org/glsa/202003-52"
},
{
"name": "[debian-lts-announce] 20230914 [SECURITY] [DLA 3563-1] samba security update",
"tags": [
"mailing-list"
],
"url": "https://lists.debian.org/debian-lts-announce/2023/09/msg00013.html"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"assignerShortName": "redhat",
"cveId": "CVE-2019-19344",
"datePublished": "2020-01-21T00:00:00.000Z",
"dateReserved": "2019-11-27T00:00:00.000Z",
"dateUpdated": "2024-08-05T02:16:47.118Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2019-19344",
"date": "2026-09-17",
"epss": "0.02756",
"percentile": "0.85534"
},
"nvd": {
"cve": {
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*",
"matchCriteriaId": "90EC6BC6-BE25-4A68-852D-B58BCA1A6624",
"versionEndExcluding": "4.9.18",
"versionStartIncluding": "4.9.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*",
"matchCriteriaId": "B7487A1D-2694-41FC-895C-4679A6595EBE",
"versionEndExcluding": "4.10.12",
"versionStartIncluding": "4.10.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*",
"matchCriteriaId": "B316BA8C-6822-49AA-8198-52E779B717DF",
"versionEndExcluding": "4.11.5",
"versionStartIncluding": "4.11.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
"matchCriteriaId": "F7016A2A-8365-4F1A-89A2-7A19F2BCAE5B",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
"matchCriteriaId": "23A7C53F-B80F-4E6A-AFA9-58EEA84BE11D",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*",
"matchCriteriaId": "CD783B0C-9246-47D9-A937-6144FE8BFF0F",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*",
"matchCriteriaId": "A31C8344-3E02-4EB8-8BD8-4C84B7959624",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:synology:directory_server:-:*:*:*:*:*:*:*",
"matchCriteriaId": "83512426-0B96-43E2-AFBA-592B25E61676",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:synology:router_manager:1.2:*:*:*:*:*:*:*",
"matchCriteriaId": "85F6D2BF-23EA-4D44-8126-64EA85184D38",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:synology:skynas:-:*:*:*:*:*:*:*",
"matchCriteriaId": "7C997777-BE79-4F77-90D7-E1A71D474D88",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:synology:diskstation_manager:6.2:*:*:*:*:*:*:*",
"matchCriteriaId": "D9685B12-824F-42AD-B87C-6E7A78BB7FA5",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*",
"matchCriteriaId": "B620311B-34A3-48A6-82DF-6F078D7A4493",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "There is a use-after-free issue in all samba 4.9.x versions before 4.9.18, all samba 4.10.x versions before 4.10.12 and all samba 4.11.x versions before 4.11.5, essentially due to a call to realloc() while other local variables still point at the original buffer."
},
{
"lang": "es",
"value": "Se presenta un problema de uso de la memoria previamente liberada en todas las versiones 4.9.x anteriores a 4.9.18 de samba, todas las versiones 4.10.x anteriores a 4.10.12 de samba y todas las versiones 4.11.x anteriores a 4.11.5 de samba, esencialmente debido a una llamada a la funci\u00f3n realloc() mientras que otras variables locales a\u00fan apuntan al b\u00fafer original."
}
],
"id": "CVE-2019-19344",
"lastModified": "2025-01-14T19:29:55.853",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "SINGLE",
"availabilityImpact": "PARTIAL",
"baseScore": 4.0,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 8.0,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 3.6,
"source": "secalert@redhat.com",
"type": "Secondary"
},
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2020-01-21T18:15:12.937",
"references": [
{
"source": "secalert@redhat.com",
"tags": [
"Third Party Advisory"
],
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00055.html"
},
{
"source": "secalert@redhat.com",
"tags": [
"Issue Tracking",
"Third Party Advisory"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-19344"
},
{
"source": "secalert@redhat.com",
"url": "https://lists.debian.org/debian-lts-announce/2023/09/msg00013.html"
},
{
"source": "secalert@redhat.com",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4ACZVNMIFQGGXNJPMHAVBN3H2U65FXQY/"
},
{
"source": "secalert@redhat.com",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GQ6U65I2K23YJC4FESW477WL55TU3PPT/"
},
{
"source": "secalert@redhat.com",
"url": "https://security.gentoo.org/glsa/202003-52"
},
{
"source": "secalert@redhat.com",
"tags": [
"Third Party Advisory"
],
"url": "https://security.netapp.com/advisory/ntap-20200122-0001/"
},
{
"source": "secalert@redhat.com",
"tags": [
"Third Party Advisory"
],
"url": "https://usn.ubuntu.com/4244-1/"
},
{
"source": "secalert@redhat.com",
"tags": [
"Vendor Advisory"
],
"url": "https://www.samba.org/samba/security/CVE-2019-19344.html"
},
{
"source": "secalert@redhat.com",
"tags": [
"Third Party Advisory"
],
"url": "https://www.synology.com/security/advisory/Synology_SA_20_01"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00055.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Issue Tracking",
"Third Party Advisory"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-19344"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://lists.debian.org/debian-lts-announce/2023/09/msg00013.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4ACZVNMIFQGGXNJPMHAVBN3H2U65FXQY/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GQ6U65I2K23YJC4FESW477WL55TU3PPT/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://security.gentoo.org/glsa/202003-52"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://security.netapp.com/advisory/ntap-20200122-0001/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://usn.ubuntu.com/4244-1/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "https://www.samba.org/samba/security/CVE-2019-19344.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://www.synology.com/security/advisory/Synology_SA_20_01"
}
],
"sourceIdentifier": "secalert@redhat.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-416"
}
],
"source": "secalert@redhat.com",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-416"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2025-11-21T14:02:03+00:00",
"cve": "CVE-2019-19344",
"id": "CVE-2019-19344",
"initial_release_date": "2019-01-01T00:00:00+00:00",
"product_status:known_not_affected": "133",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "samba: Use after free during DNS zone scavenging in Samba AD DC",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2019/cve-2019-19344.json",
"version": "3"
}
}
}
Loading…
Loading…
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.
Loading…
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.
Loading…
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.
Loading…