{"id":"CVE-2022-0635","state":"PUBLISHED","title":"Versions affected: BIND 9.18.0 When a vulnerable version of named receives a series of specific queries, the named process will eventually terminate due to a failed assertion check","description":"Versions affected: BIND 9.18.0 When a vulnerable version of named receives a series of specific queries, the named process will eventually terminate due to a failed assertion check.","publishedAt":"2022-03-23T11:55:10.058Z","updatedAt":"2024-09-17T02:21:44.299Z","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"],"affected":[{"vendor":"ISC","product":"BIND","versions":[{"version":"Open Source Branch 9.18 9.18.0","status":"affected"}]}],"references":["https://kb.isc.org/v1/docs/cve-2022-0635","https://security.netapp.com/advisory/ntap-20220408-0001/"],"weaknesses":[],"ingestedAt":"2026-10-29T19:49:26.075Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/0xxx/CVE-2022-0635.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2022-0635","state":"PUBLISHED","datePublished":"2022-03-23T11:55:10.058Z","dateUpdated":"2024-09-17T02:21:44.299Z","assignerShortName":"isc","assignerOrgId":"404fd4d2-a609-4245-b543-2c944a302a22","dateReserved":"2022-02-16T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"Versions affected: BIND 9.18.0 When a vulnerable version of named receives a series of specific queries, the named process will eventually terminate due to a failed assertion check."}],"affected":[{"vendor":"ISC","product":"BIND","versions":[{"version":"Open Source Branch 9.18 9.18.0","status":"affected"}]}],"references":[{"url":"https://kb.isc.org/v1/docs/cve-2022-0635","tags":["x_refsource_CONFIRM"]},{"url":"https://security.netapp.com/advisory/ntap-20220408-0001/","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV3_1":{"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"}}],"problemTypes":[{"descriptions":[{"description":"We refactored the RFC 8198 Aggressive Use of DNSSEC-Validated Cache feature (synth-from-dnssec) for the new BIND 9.18.0 stable release, and changed the default so that is now automatically enabled for dnssec-validating resolvers. Subsequently it was found that repeated patterns of specific queries to servers with this feature enabled could cause an INSIST failure in query.c:query_dname which causes named to terminate unexpectedly. The vulnerability affects BIND resolvers running 9.18.0 that have both dnssec-validation and synth-from-dnssec enabled. (Note that dnssec-validation auto; is the default setting unless configured otherwise in named.conf and that enabling dnssec-validation automatically enables synth-from-dnssec unless explicitly disabled) Versions affected: BIND 9.18.0","lang":"en","type":"text"}]}],"providerMetadata":{"shortName":"isc","dateUpdated":"2022-04-08T22:06:11.000Z","orgId":"404fd4d2-a609-4245-b543-2c944a302a22"},"credits":[{"lang":"en","value":"ISC would like to thank Vincent Levigneron of AFNIC for reporting this issue to us and for verifying the fix and workaround."}],"datePublic":"2022-03-16T00:00:00.000Z","solutions":[{"lang":"en","value":"Users of BIND 9.18.0 should upgrade to BIND 9.18.1"}],"source":{"discovery":"EXTERNAL"},"workarounds":[{"lang":"en","value":"The failure can be avoided by adding this option to named.conf:\nsynth-from-dnssec no;"}],"x_generator":{"engine":"Vulnogram 0.0.9"},"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"security-officer@isc.org","DATE_PUBLIC":"2022-03-16T11:00:00.000Z","ID":"CVE-2022-0635","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"BIND","version":{"version_data":[{"version_name":"Open Source Branch 9.18","version_value":"9.18.0"}]}}]},"vendor_name":"ISC"}]}},"credit":[{"lang":"eng","value":"ISC would like to thank Vincent Levigneron of AFNIC for reporting this issue to us and for verifying the fix and workaround."}],"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"Versions affected: BIND 9.18.0 When a vulnerable version of named receives a series of specific queries, the named process will eventually terminate due to a failed assertion check."}]},"generator":{"engine":"Vulnogram 0.0.9"},"impact":{"cvss":{"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"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"We refactored the RFC 8198 Aggressive Use of DNSSEC-Validated Cache feature (synth-from-dnssec) for the new BIND 9.18.0 stable release, and changed the default so that is now automatically enabled for dnssec-validating resolvers. Subsequently it was found that repeated patterns of specific queries to servers with this feature enabled could cause an INSIST failure in query.c:query_dname which causes named to terminate unexpectedly. The vulnerability affects BIND resolvers running 9.18.0 that have both dnssec-validation and synth-from-dnssec enabled. (Note that dnssec-validation auto; is the default setting unless configured otherwise in named.conf and that enabling dnssec-validation automatically enables synth-from-dnssec unless explicitly disabled) Versions affected: BIND 9.18.0"}]}]},"references":{"reference_data":[{"name":"https://kb.isc.org/v1/docs/cve-2022-0635","refsource":"CONFIRM","url":"https://kb.isc.org/v1/docs/cve-2022-0635"},{"name":"https://security.netapp.com/advisory/ntap-20220408-0001/","refsource":"CONFIRM","url":"https://security.netapp.com/advisory/ntap-20220408-0001/"}]},"solution":[{"lang":"en","value":"Users of BIND 9.18.0 should upgrade to BIND 9.18.1"}],"source":{"discovery":"EXTERNAL"},"work_around":[{"lang":"en","value":"The failure can be avoided by adding this option to named.conf:\nsynth-from-dnssec no;"}]}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://kb.isc.org/v1/docs/cve-2022-0635","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://security.netapp.com/advisory/ntap-20220408-0001/","tags":["x_refsource_CONFIRM","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-02T23:32:46.460Z"}}]}}}