{"api_version":"1","generated_at":"2026-04-23T22:09:53+00:00","cve":"CVE-2021-3910","urls":{"html":"https://cve.report/CVE-2021-3910","api":"https://cve.report/api/cve/CVE-2021-3910.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-3910","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-3910"},"summary":{"title":"CVE-2021-3910","description":"OctoRPKI crashes when encountering a repository that returns an invalid ROA (just an encoded NUL (\\0) character).","state":"PUBLIC","assigner":"cna@cloudflare.com","published_at":"2021-11-11 22:15:00","updated_at":"2022-04-04 14:02:00"},"problem_types":["CWE-20"],"metrics":[],"references":[{"url":"https://github.com/cloudflare/cfrpki/security/advisories/GHSA-5mxh-2qfv-4g7j","name":"https://github.com/cloudflare/cfrpki/security/advisories/GHSA-5mxh-2qfv-4g7j","refsource":"MISC","tags":[],"title":"NUL character in ROA causes OctoRPKI to crash · Advisory · cloudflare/cfrpki · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.debian.org/security/2022/dsa-5041","name":"DSA-5041","refsource":"DEBIAN","tags":[],"title":"Debian -- Security Information -- DSA-5041-1 cfrpki","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-3910","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-3910","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"LEGACY","value":"Koen van Hove","lang":""}],"nvd_cpes":[{"cve_year":"2021","cve_id":"3910","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"cloudflare","cpe5":"octorpki","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"3910","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"debian","cpe5":"debian_linux","cpe6":"11.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2021-3910","qid":"178993","title":"Debian Security Update for cfrpki (DSA 5041-1)"},{"cve":"CVE-2021-3910","qid":"184029","title":"Debian Security Update for cfrpki (CVE-2021-3910)"},{"cve":"CVE-2021-3910","qid":"980110","title":"Go (go) Security Update for github.com/cloudflare/cfrpki (GHSA-5mxh-2qfv-4g7j)"}]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"cna@cloudflare.com","DATE_PUBLIC":"2021-11-01T22:48:00.000Z","ID":"CVE-2021-3910","STATE":"PUBLIC","TITLE":"NUL character in ROA causes OctoRPKI to crash"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"octorpki","version":{"version_data":[{"version_affected":"<","version_value":"1.4.0"}]}}]},"vendor_name":"Cloudflare"}]}},"credit":[{"lang":"eng","value":"Koen van Hove"}],"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"OctoRPKI crashes when encountering a repository that returns an invalid ROA (just an encoded NUL (\\0) character)."}]},"generator":{"engine":"Vulnogram 0.0.9"},"impact":{"cvss":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":4.4,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"HIGH","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-20 Improper Input Validation"}]}]},"references":{"reference_data":[{"refsource":"MISC","url":"https://github.com/cloudflare/cfrpki/security/advisories/GHSA-5mxh-2qfv-4g7j","name":"https://github.com/cloudflare/cfrpki/security/advisories/GHSA-5mxh-2qfv-4g7j"},{"refsource":"DEBIAN","name":"DSA-5041","url":"https://www.debian.org/security/2022/dsa-5041"}]},"solution":[{"lang":"eng","value":"Upgrade to 1.4"}],"source":{"discovery":"EXTERNAL"}},"nvd":{"publishedDate":"2021-11-11 22:15:00","lastModifiedDate":"2022-04-04 14:02:00","problem_types":["CWE-20"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:N/I:N/A:P","accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL","baseScore":5},"severity":"MEDIUM","exploitabilityScore":10,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:cloudflare:octorpki:*:*:*:*:*:*:*:*","versionEndExcluding":"1.3.0","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2021","CveId":"3910","Ordinal":"219569","Title":"CVE-2021-3910","CVE":"CVE-2021-3910","Year":"2021"},"notes":[{"CveYear":"2021","CveId":"3910","Ordinal":"1","NoteData":"OctoRPKI crashes when encountering a repository that returns an invalid ROA (just an encoded NUL (\\0) character).","Type":"Description","Title":null},{"CveYear":"2021","CveId":"3910","Ordinal":"2","NoteData":"2021-11-11","Type":"Other","Title":"Published"},{"CveYear":"2021","CveId":"3910","Ordinal":"3","NoteData":"2022-01-12","Type":"Other","Title":"Modified"}]}}}