{"id":"CVE-2022-3736","state":"PUBLISHED","title":"named configured to answer from stale cache may terminate unexpectedly while processing RRSIG queries","description":"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.","publishedAt":"2023-01-25T21:39:18.187Z","updatedAt":"2025-04-01T14:10:47.439Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"isc"},"assigner":"isc","products":["ISC BIND 9"],"affected":[{"vendor":"ISC","product":"BIND 9","defaultStatus":"unaffected","versions":[{"version":"9.16.12","status":"affected","lessThanOrEqual":"9.16.36","versionType":"custom"},{"version":"9.18.0","status":"affected","lessThanOrEqual":"9.18.10","versionType":"custom"},{"version":"9.19.0","status":"affected","lessThanOrEqual":"9.19.8","versionType":"custom"},{"version":"9.16.12-S1","status":"affected","lessThanOrEqual":"9.16.36-S1","versionType":"custom"}]}],"references":["https://kb.isc.org/docs/cve-2022-3736"],"weaknesses":["CWE-20"],"ingestedAt":"2026-10-29T19:50:32.060Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/3xxx/CVE-2022-3736.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2022-3736","state":"PUBLISHED","datePublished":"2023-01-25T21:39:18.187Z","dateUpdated":"2025-04-01T14:10:47.439Z","assignerShortName":"isc","assignerOrgId":"404fd4d2-a609-4245-b543-2c944a302a22","dateReserved":"2022-10-28T07:04:32.966Z"},"containers":{"cna":{"title":"named configured to answer from stale cache may terminate unexpectedly while processing RRSIG queries","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."}],"affected":[{"vendor":"ISC","product":"BIND 9","defaultStatus":"unaffected","versions":[{"version":"9.16.12","status":"affected","lessThanOrEqual":"9.16.36","versionType":"custom"},{"version":"9.18.0","status":"affected","lessThanOrEqual":"9.18.10","versionType":"custom"},{"version":"9.19.0","status":"affected","lessThanOrEqual":"9.19.8","versionType":"custom"},{"version":"9.16.12-S1","status":"affected","lessThanOrEqual":"9.16.36-S1","versionType":"custom"}]}],"references":[{"url":"https://kb.isc.org/docs/cve-2022-3736","name":"CVE-2022-3736","tags":["vendor-advisory"]}],"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"}}],"problemTypes":[{"descriptions":[{"description":"n/a","lang":"en","type":"text"}]}],"providerMetadata":{"shortName":"isc","orgId":"404fd4d2-a609-4245-b543-2c944a302a22","dateUpdated":"2023-01-26T06:03:10.975Z"},"datePublic":"2023-01-25T00:00:00.000Z","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 Niño from Fundación Sarenet) for bringing this vulnerability to our attention."}],"source":{"discovery":"EXTERNAL"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://kb.isc.org/docs/cve-2022-3736","name":"CVE-2022-3736","tags":["vendor-advisory","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-03T01:20:57.535Z"}},{"title":"CISA ADP Vulnrichment","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"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-20","type":"CWE","lang":"en","description":"CWE-20 Improper Input Validation"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-04-01T14:10:47.439Z"}}]}}}