{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2022-3736", "assignerOrgId": "404fd4d2-a609-4245-b543-2c944a302a22", "state": "PUBLISHED", "assignerShortName": "isc", "dateReserved": "2022-10-28T07:04:32.966Z", "datePublished": "2023-01-25T21:39:18.187Z", "dateUpdated": "2025-04-01T14:10:47.439Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "404fd4d2-a609-4245-b543-2c944a302a22", "shortName": "isc", "dateUpdated": "2023-01-26T06:03:10.975Z"}, "title": "named configured to answer from stale cache may terminate unexpectedly while processing RRSIG queries", "datePublic": "2023-01-25T00:00:00.000Z", "affected": [{"vendor": "ISC", "product": "BIND 9", "versions": [{"version": "9.16.12", "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": "9.16.12-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": "BIND 9 resolver can crash when stale cache and stale answers are enabled, option `stale-answer-client-timeout` is set to a positive integer, and the resolver receives an RRSIG query.\nThis issue affects BIND 9 versions 9.16.12 through 9.16.36, 9.18.0 through 9.18.10, 9.19.0 through 9.19.8, and 9.16.12-S1 through 9.16.36-S1."}], "impacts": [{"descriptions": [{"lang": "en", "value": "By sending specific queries to the resolver, an attacker can cause `named` to crash."}]}], "workarounds": [{"lang": "en", "value": "Setting `stale-answer-client-timeout` to `0` or to `off/disabled` will prevent BIND from crashing due to this issue."}], "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 Borja Marcos from Sarenet (with assistance by Iratxe Ni\u00f1o from Fundaci\u00f3n Sarenet) for bringing this vulnerability to our attention."}], "references": [{"url": "https://kb.isc.org/docs/cve-2022-3736", "name": "CVE-2022-3736", "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": "2024-08-03T01:20:57.535Z"}, "title": "CVE Program Container", "references": [{"url": "https://kb.isc.org/docs/cve-2022-3736", "name": "CVE-2022-3736", "tags": ["vendor-advisory", "x_transferred"]}]}, {"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-20", "lang": "en", "description": "CWE-20 Improper Input Validation"}]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-04-01T14:10:30.864635Z", "id": "CVE-2022-3736", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-04-01T14:10:47.439Z"}}]}}

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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*", "matchCriteriaId": "FC5F91EF-B660-42FF-9B48-880299C9A128", "versionEndExcluding": "9.16.37", "versionStartIncluding": "9.16.12", "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:9.16.11: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"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "BIND 9 resolver can crash when stale cache and stale answers are enabled, option `stale-answer-client-timeout` is set to a positive integer, and the resolver receives an RRSIG query.\nThis issue affects BIND 9 versions 9.16.12 through 9.16.36, 9.18.0 through 9.18.10, 9.19.0 through 9.19.8, and 9.16.12-S1 through 9.16.36-S1."}, {"lang": "es", "value": "El solucionador BIND 9 puede fallar cuando el cach\u00e9 obsoleto y las respuestas obsoletas est\u00e1n habilitados, la opci\u00f3n `stale-answer-client-timeout` est\u00e1 configurada en un entero positivo y el solucionador recibe una consulta RRSIG. Este problema afecta a las versiones de BIND 9, 9.16.12 a 9.16.36, 9.18.0 a 9.18.10, 9.19.0 a 9.19.8 y 9.16.12-S1 a 9.16.36-S1."}], "id": "CVE-2022-3736", "lastModified": "2025-04-01T15:15:53.150", "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": "2023-01-26T21:15:57.940", "references": [{"source": "security-officer@isc.org", "tags": ["Vendor Advisory"], "url": "https://kb.isc.org/docs/cve-2022-3736"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://kb.isc.org/docs/cve-2022-3736"}], "sourceIdentifier": "security-officer@isc.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-20"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"acknowledgement": "Red Hat would like to thank Borja Marcos (Sarenet) and Iratxe Ni\u00f1o (Fundaci\u00f3n Sarenet) 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-2023:2261", "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: sending specific queries to the resolver may cause a DoS", "id": "2164038", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2164038"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "cwe": "CWE-20", "details": ["BIND 9 resolver can crash when stale cache and stale answers are enabled, option `stale-answer-client-timeout` is set to a positive integer, and the resolver receives an RRSIG query.\nThis issue affects BIND 9 versions 9.16.12 through 9.16.36, 9.18.0 through 9.18.10, 9.19.0 through 9.19.8, and 9.16.12-S1 through 9.16.36-S1.", "A flaw was found in Bind, where a resolver crash is possible. When stale cache and stale answers are enabled, the option stale-answer-client-timeout is set to a positive integer, and the resolver receives an RRSIG query."], "mitigation": {"lang": "en:us", "value": "Setting stale-answer-client-timeout to 0 or to off/disabled will prevent BIND from crashing due to this issue."}, "name": "CVE-2022-3736", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "bind", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "bind", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "bind", "product_name": "Red Hat Enterprise Linux 8"}, {"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-2022-3736\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-3736\nhttps://kb.isc.org/docs/cve-2022-3736"], "statement": "The flaw exists in the implementation of the stale-answer-client-timeout option, which was first effectively introduced in bind 9.16.12.", "threat_severity": "Moderate"}