{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2022-3094", "assignerOrgId": "404fd4d2-a609-4245-b543-2c944a302a22", "state": "PUBLISHED", "assignerShortName": "isc", "dateReserved": "2022-09-02T10:25:47.183Z", "datePublished": "2023-01-25T21:34:52.983Z", "dateUpdated": "2024-08-03T01:00:10.516Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "404fd4d2-a609-4245-b543-2c944a302a22", "shortName": "isc", "dateUpdated": "2023-01-26T06:03:10.975661Z"}, "title": "An UPDATE message flood may cause named to exhaust all available memory", "datePublic": "2023-01-25T00:00:00Z", "affected": [{"vendor": "ISC", "product": "BIND 9", "versions": [{"version": "9.16.0", "lessThanOrEqual": "9.16.36", "status": "affected", "versionType": "custom"}, {"version": "9.18.0", "lessThanOrEqual": "9.18.10", "status": "affected", "versionType": "custom"}, {"version": "9.19.0", "lessThanOrEqual": "9.19.8", "status": "affected", "versionType": "custom"}, {"version": "9.16.8-S1", "lessThanOrEqual": "9.16.36-S1", "status": "affected", "versionType": "custom"}], "defaultStatus": "unaffected"}], "metrics": [{"cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH"}}], "descriptions": [{"lang": "en", "value": "Sending a flood of dynamic DNS updates may cause `named` to allocate large amounts of memory. This, in turn, may cause `named` to exit due to a lack of free memory. We are not aware of any cases where this has been exploited.\n\nMemory is allocated prior to the checking of access permissions (ACLs) and is retained during the processing of a dynamic update from a client whose access credentials are accepted. Memory allocated to clients that are not permitted to send updates is released immediately upon rejection. The scope of this vulnerability is limited therefore to trusted clients who are permitted to make dynamic zone changes.\n\nIf a dynamic update is REFUSED, memory will be released again very quickly. Therefore it is only likely to be possible to degrade or stop `named` by sending a flood of unaccepted dynamic updates comparable in magnitude to a query flood intended to achieve the same detrimental outcome.\n\nBIND 9.11 and earlier branches are also affected, but through exhaustion of internal resources rather than memory constraints. This may reduce performance but should not be a significant problem for most servers. Therefore we don't intend to address this for BIND versions prior to BIND 9.16.\nThis issue affects BIND 9 versions 9.16.0 through 9.16.36, 9.18.0 through 9.18.10, 9.19.0 through 9.19.8, and 9.16.8-S1 through 9.16.36-S1."}], "impacts": [{"descriptions": [{"lang": "en", "value": "By flooding the target server with UPDATE requests, the attacker can exhaust all available memory on that server."}]}], "workarounds": [{"lang": "en", "value": "No workarounds known."}], "exploits": [{"lang": "en", "value": "We are not aware of any active exploits."}], "solutions": [{"lang": "en", "value": "Upgrade to the patched release most closely related to your current version of BIND 9: 9.16.37, 9.18.11, 9.19.9, or 9.16.37-S1."}], "credits": [{"lang": "en", "value": "ISC would like to thank Rob Schulhof from Infoblox for bringing this vulnerability to our attention."}], "references": [{"url": "https://kb.isc.org/docs/cve-2022-3094", "name": "CVE-2022-3094", "tags": ["vendor-advisory"]}], "source": {"discovery": "EXTERNAL"}, "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}]}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T01:00:10.516Z"}, "title": "CVE Program Container", "references": [{"url": "https://kb.isc.org/docs/cve-2022-3094", "name": "CVE-2022-3094", "tags": ["vendor-advisory", "x_transferred"]}]}]}}

{}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*", "matchCriteriaId": "3D7D78D4-7431-442A-8E69-532822116ED3", "versionEndExcluding": "9.16.37", "versionStartIncluding": "9.16.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*", "matchCriteriaId": "92119B97-ADE6-47C0-B3E2-3B05C08A0B99", "versionEndExcluding": "9.18.11", "versionStartIncluding": "9.18.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*", "matchCriteriaId": "CB820E6D-F56C-4222-A3FF-3A02266FD68B", "versionEndExcluding": "9.19.9", "versionStartIncluding": "9.19.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:isc:bind:9.16.8:s1:*:*:supported_preview:*:*:*", "matchCriteriaId": "288EAD80-574B-4839-9C2C-81D6D088A733", "vulnerable": true}, {"criteria": "cpe:2.3:a:isc:bind:9.16.11:s1:*:*:supported_preview:*:*:*", "matchCriteriaId": "3595F024-F910-4356-8B5B-D478960FF574", "vulnerable": true}, {"criteria": "cpe:2.3:a:isc:bind:9.16.13:s1:*:*:supported_preview:*:*:*", "matchCriteriaId": "94661BA2-27F8-4FFE-B844-9404F735579D", "vulnerable": true}, {"criteria": "cpe:2.3:a:isc:bind:9.16.14:s1:*:*:supported_preview:*:*:*", "matchCriteriaId": "53593603-E2AF-4925-A6E6-109F097A0FF2", "vulnerable": true}, {"criteria": "cpe:2.3:a:isc:bind:9.16.21:s1:*:*:supported_preview:*:*:*", "matchCriteriaId": "751E37C2-8BFD-4306-95C1-8C01CE495FA4", "vulnerable": true}, {"criteria": "cpe:2.3:a:isc:bind:9.16.32:s1:*:*:supported_preview:*:*:*", "matchCriteriaId": "CC432820-F1A2-4132-A673-2620119553C5", "vulnerable": true}, {"criteria": "cpe:2.3:a:isc:bind:9.16.36:s1:*:*:supported_preview:*:*:*", "matchCriteriaId": "F70347F2-6750-4497-B8F4-2036F4F4443A", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "Sending a flood of dynamic DNS updates may cause `named` to allocate large amounts of memory. This, in turn, may cause `named` to exit due to a lack of free memory. We are not aware of any cases where this has been exploited.\n\nMemory is allocated prior to the checking of access permissions (ACLs) and is retained during the processing of a dynamic update from a client whose access credentials are accepted. Memory allocated to clients that are not permitted to send updates is released immediately upon rejection. The scope of this vulnerability is limited therefore to trusted clients who are permitted to make dynamic zone changes.\n\nIf a dynamic update is REFUSED, memory will be released again very quickly. Therefore it is only likely to be possible to degrade or stop `named` by sending a flood of unaccepted dynamic updates comparable in magnitude to a query flood intended to achieve the same detrimental outcome.\n\nBIND 9.11 and earlier branches are also affected, but through exhaustion of internal resources rather than memory constraints. This may reduce performance but should not be a significant problem for most servers. Therefore we don't intend to address this for BIND versions prior to BIND 9.16.\nThis issue affects BIND 9 versions 9.16.0 through 9.16.36, 9.18.0 through 9.18.10, 9.19.0 through 9.19.8, and 9.16.8-S1 through 9.16.36-S1."}, {"lang": "es", "value": "El env\u00edo de una avalancha de actualizaciones din\u00e1micas de DNS puede hacer que \"\"named\"\" asigne grandes cantidades de memoria. Esto, a su vez, puede provocar que \"\"named\"\" se cierre debido a la falta de memoria libre.\n\nNo conocemos ning\u00fan caso en el que esto haya sido explotado. La memoria se asigna antes de verificar los permisos de acceso (ACL) y se retiene durante el procesamiento de una actualizaci\u00f3n din\u00e1mica de un cliente cuyas credenciales de acceso se aceptan. La memoria asignada a los clientes a los que no se les permite enviar actualizaciones se libera inmediatamente despu\u00e9s del rechazo. Por lo tanto, el alcance de esta vulnerabilidad se limita a clientes confiables a quienes se les permite realizar cambios de zona din\u00e1micos. \n\nSi se RECHAZA una actualizaci\u00f3n din\u00e1mica, la memoria se liberar\u00e1 nuevamente muy r\u00e1pidamente. Por lo tanto, es probable que s\u00f3lo sea posible degradar o detener \"\"named\"\" enviando una avalancha de actualizaciones din\u00e1micas no aceptadas comparable en magnitud a una avalancha de consultas destinadas a lograr el mismo resultado perjudicial. \n\nBIND 9.11 y ramas anteriores tambi\u00e9n se ven afectadas, pero por el agotamiento de los recursos internos en lugar de por limitaciones de memoria. Esto puede reducir el rendimiento, pero no deber\u00eda ser un problema importante para la mayor\u00eda de los servidores. Por lo tanto, no pretendemos abordar este problema para las versiones de BIND anteriores a BIND 9.16. \n\nEste problema afecta a las versiones 9.16.0 a 9.16.36, 9.18.0 a 9.18.10, 9.19.0 a 9.19.8 y 9.16.8-S1 a 9.16.36-S1 de BIND 9."}], "id": "CVE-2022-3094", "lastModified": "2024-11-21T07:18:48.880", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "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:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "security-officer@isc.org", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "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:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2023-01-26T21:15:50.653", "references": [{"source": "security-officer@isc.org", "tags": ["Vendor Advisory"], "url": "https://kb.isc.org/docs/cve-2022-3094"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://kb.isc.org/docs/cve-2022-3094"}], "sourceIdentifier": "security-officer@isc.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "Red Hat would like to thank Rob Schulhof (Infoblox) for reporting this issue.", "affected_release": [{"advisory": "RHSA-2023:2792", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "bind9.16-32:9.16.23-0.14.el8", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2023-05-16T00:00:00Z"}, {"advisory": "RHSA-2023:7177", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "bind-32:9.11.36-11.el8_9", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2023-11-14T00:00:00Z"}, {"advisory": "RHSA-2023:7177", "cpe": "cpe:/o:redhat:enterprise_linux:8", "package": "bind-32:9.11.36-11.el8_9", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2023-11-14T00:00:00Z"}, {"advisory": "RHSA-2024:2720", "cpe": "cpe:/a:redhat:rhel_eus:8.6", "package": "bind-32:9.11.36-3.el8_6.7", "product_name": "Red Hat Enterprise Linux 8.6 Extended Update Support", "release_date": "2024-05-07T00:00:00Z"}, {"advisory": "RHSA-2024:2720", "cpe": "cpe:/a:redhat:rhel_eus:8.6", "package": "dhcp-12:4.3.6-47.el8_6.2", "product_name": "Red Hat Enterprise Linux 8.6 Extended Update Support", "release_date": "2024-05-07T00:00:00Z"}, {"advisory": "RHSA-2024:1406", "cpe": "cpe:/a:redhat:rhel_eus:8.8", "package": "bind-32:9.11.36-8.el8_8.3", "product_name": "Red Hat Enterprise Linux 8.8 Extended Update Support", "release_date": "2024-03-19T00:00:00Z"}, {"advisory": "RHSA-2023:2261", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "bind-32:9.16.23-11.el9", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2023-05-09T00:00:00Z"}], "bugzilla": {"description": "bind: flooding with UPDATE requests may lead to DoS", "id": "2164032", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2164032"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "cwe": "CWE-20", "details": ["Sending a flood of dynamic DNS updates may cause `named` to allocate large amounts of memory. This, in turn, may cause `named` to exit due to a lack of free memory. We are not aware of any cases where this has been exploited.\nMemory is allocated prior to the checking of access permissions (ACLs) and is retained during the processing of a dynamic update from a client whose access credentials are accepted. Memory allocated to clients that are not permitted to send updates is released immediately upon rejection. The scope of this vulnerability is limited therefore to trusted clients who are permitted to make dynamic zone changes.\nIf a dynamic update is REFUSED, memory will be released again very quickly. Therefore it is only likely to be possible to degrade or stop `named` by sending a flood of unaccepted dynamic updates comparable in magnitude to a query flood intended to achieve the same detrimental outcome.\nBIND 9.11 and earlier branches are also affected, but through exhaustion of internal resources rather than memory constraints. This may reduce performance but should not be a significant problem for most servers. Therefore we don't intend to address this for BIND versions prior to BIND 9.16.\nThis issue affects BIND 9 versions 9.16.0 through 9.16.36, 9.18.0 through 9.18.10, 9.19.0 through 9.19.8, and 9.16.8-S1 through 9.16.36-S1.", "A flaw was found in Bind, where sending a flood of dynamic DNS updates may cause named to allocate large amounts of memory. This issue may cause named to slow down due to a lack of free memory, resulting in a denial of service (DoS)."], "name": "CVE-2022-3094", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "bind", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Will not fix", "package_name": "bind", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "dhcp", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2023-01-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-3094\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-3094\nhttps://kb.isc.org/docs/cve-2022-3094"], "statement": "Exploitation of this vulnerability is limited to trusted clients who are permitted to make dynamic zone changes. The impact on the 'named' service is directly related to the volume of requests being sent in. The service will recover to normal once an attacker stops sending dynamic updates. While a performance impact can be triggered, it is unlikely to result in a crash.", "threat_severity": "Moderate", "upstream_fix": "bind 9.16.37, bind 9.18.11, bind 9.19.9"}