CVE-2023-5680 (GCVE-0-2023-5680)
Vulnerability from cvelistv5 – Published: 2024-02-13 14:05 – Updated: 2025-03-17 15:04
VLAI
EPSS
VEX
Title
Cleaning an ECS-enabled cache may cause excessive CPU load
Summary
If a resolver cache has a very large number of ECS records stored for the same name, the process of cleaning the cache database node for this name can significantly impair query performance.
This issue affects BIND 9 versions 9.11.3-S1 through 9.11.37-S1, 9.16.8-S1 through 9.16.45-S1, and 9.18.11-S1 through 9.18.21-S1.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-02-13 18:02 UTC
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://kb.isc.org/docs/cve-2023-5680 | vendor-advisory |
| https://security.netapp.com/advisory/ntap-2024050… |
Impacted products
Date Public
2024-02-13 00:00
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"matchCriteriaId": "A4B53B73-DB81-4AC1-A4E6-89BB305D6514",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:isc:bind:9.18.11:s1:*:*:supported_preview:*:*:*",
"matchCriteriaId": "16A7E0D1-35A1-4899-9FF2-14279C137C14",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:isc:bind:9.18.18:s1:*:*:supported_preview:*:*:*",
"matchCriteriaId": "0233AEF2-9911-48AE-AE97-F217E3337AAF",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:isc:bind:9.18.21:s1:*:*:supported_preview:*:*:*",
"matchCriteriaId": "DFE3AE03-DBB5-4891-8EF2-BF30AA6F66FD",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:*",
"matchCriteriaId": "3A756737-1CC4-42C2-A4DF-E1C893B4E2D5",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "If a resolver cache has a very large number of ECS records stored for the same name, the process of cleaning the cache database node for this name can significantly impair query performance. \nThis issue affects BIND 9 versions 9.11.3-S1 through 9.11.37-S1, 9.16.8-S1 through 9.16.45-S1, and 9.18.11-S1 through 9.18.21-S1."
},
{
"lang": "es",
"value": "Si un cach\u00e9 de resoluci\u00f3n tiene una gran cantidad de registros ECS almacenados para el mismo nombre, el proceso de limpieza del nodo de la base de datos del cach\u00e9 para este nombre puede afectar significativamente el rendimiento de la consulta. Este problema afecta a las versiones de BIND 9, 9.11.3-S1 a 9.11.37-S1, 9.16.8-S1 a 9.16.45-S1 y 9.18.11-S1 a 9.18.21-S1."
}
],
"id": "CVE-2023-5680",
"lastModified": "2026-06-17T06:49:04.067",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 1.4,
"source": "security-officer@isc.org",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2023-5680",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-02-13T18:02:52.507926Z",
"version": "2.0.3"
}
}
]
},
"published": "2024-02-13T14:15:45.850",
"references": [
{
"source": "security-officer@isc.org",
"tags": [
"Vendor Advisory"
],
"url": "https://kb.isc.org/docs/cve-2023-5680"
},
{
"source": "security-officer@isc.org",
"tags": [
"Third Party Advisory"
],
"url": "https://security.netapp.com/advisory/ntap-20240503-0005/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "https://kb.isc.org/docs/cve-2023-5680"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://security.netapp.com/advisory/ntap-20240503-0005/"
}
],
"sourceIdentifier": "security-officer@isc.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2025-11-21T14:51:06+00:00",
"cve": "CVE-2023-5680",
"id": "CVE-2023-5680",
"initial_release_date": "2023-01-01T00:00:00+00:00",
"product_status:known_not_affected": "63",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "bind9: Cleaning an ECS-enabled cache may cause excessive CPU load",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-5680.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-09-05T00:53:00Z",
"cve": "CVE-2023-5680",
"id": "CVE-2023-5680",
"initial_release_date": "2024-02-15T04:17:14Z",
"product_status:known_not_affected": "513",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2023-5680",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-5680.json",
"version": "18"
},
"vulnrichment": {
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-02T08:07:32.499Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"name": "CVE-2023-5680",
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://kb.isc.org/docs/cve-2023-5680"
},
{
"tags": [
"x_transferred"
],
"url": "https://security.netapp.com/advisory/ntap-20240503-0005/"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2023-5680",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-02-13T18:02:52.507926Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "CWE-noinfo Not enough information",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2024-05-23T19:01:11.233Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "BIND 9",
"vendor": "ISC",
"versions": [
{
"lessThanOrEqual": "9.11.37-S1",
"status": "affected",
"version": "9.11.3-S1",
"versionType": "custom"
},
{
"lessThanOrEqual": "9.16.45-S1",
"status": "affected",
"version": "9.16.8-S1",
"versionType": "custom"
},
{
"lessThanOrEqual": "9.18.21-S1",
"status": "affected",
"version": "9.18.11-S1",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "ISC would like to thank Yann Kerherve and Ask Bj\u00f8rn Hansen for bringing this vulnerability to our attention."
}
],
"datePublic": "2024-02-13T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "If a resolver cache has a very large number of ECS records stored for the same name, the process of cleaning the cache database node for this name can significantly impair query performance. \nThis issue affects BIND 9 versions 9.11.3-S1 through 9.11.37-S1, 9.16.8-S1 through 9.16.45-S1, and 9.18.11-S1 through 9.18.21-S1."
}
],
"exploits": [
{
"lang": "en",
"value": "We are not aware of any active exploits."
}
],
"impacts": [
{
"descriptions": [
{
"lang": "en",
"value": "By sending specific queries to a resolver, an attacker can degrade `named`\u0027s query-handling performance. In the worst-case scenario, a resolver can become entirely unresponsive."
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"version": "3.1"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-05-03T13:06:10.608Z",
"orgId": "404fd4d2-a609-4245-b543-2c944a302a22",
"shortName": "isc"
},
"references": [
{
"name": "CVE-2023-5680",
"tags": [
"vendor-advisory"
],
"url": "https://kb.isc.org/docs/cve-2023-5680"
},
{
"url": "https://security.netapp.com/advisory/ntap-20240503-0005/"
}
],
"solutions": [
{
"lang": "en",
"value": "Upgrade to the patched release most closely related to your current version of BIND 9: 9.16.48-S1 or 9.18.24-S1."
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "Cleaning an ECS-enabled cache may cause excessive CPU load",
"workarounds": [
{
"lang": "en",
"value": "There is no workaround for this issue other than disabling the ECS feature entirely."
}
]
}
},
"cveMetadata": {
"assignerOrgId": "404fd4d2-a609-4245-b543-2c944a302a22",
"assignerShortName": "isc",
"cveId": "CVE-2023-5680",
"datePublished": "2024-02-13T14:05:19.783Z",
"dateReserved": "2023-10-20T11:13:31.862Z",
"dateUpdated": "2025-03-17T15:04:41.734Z",
"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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