CVE-2022-3786

{"id": "CVE-2022-3786", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "[email protected]", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2022-11-01T18:15:11.047", "references": [{"url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=c42165b5706e42f67ef8ef4c351a9a4c5d21639a", "tags": ["Patch", "Vendor Advisory"], "source": "[email protected]"}, {"url": "https://www.openssl.org/news/secadv/20221101.txt", "tags": ["Vendor Advisory"], "source": "[email protected]"}, {"url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=c42165b5706e42f67ef8ef4c351a9a4c5d21639a", "tags": ["Patch", "Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00789.html", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.kb.cert.org/vuls/id/794340", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.openssl.org/news/secadv/20221101.txt", "tags": ["Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "[email protected]", "description": [{"lang": "en", "value": "CWE-120"}]}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-120"}]}], "descriptions": [{"lang": "en", "value": "A buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. Note that this occurs after certificate chain signature verification and requires either a CA to have signed a malicious certificate or for an application to continue certificate verification despite failure to construct a path to a trusted issuer. An attacker can craft a malicious email address in a certificate to overflow an arbitrary number of bytes containing the `.' character (decimal 46) on the stack. This buffer overflow could result in a crash (causing a denial of service). In a TLS client, this can be triggered by connecting to a malicious server. In a TLS server, this can be triggered if the server requests client authentication and a malicious client connects.\n\n"}, {"lang": "es", "value": "Puede activarse una saturaci\u00f3n del b\u00fafer en la verificaci\u00f3n del certificado X.509, espec\u00edficamente en la verificaci\u00f3n de restricciones del nombre. Tenga en cuenta que esto ocurre despu\u00e9s de la verificaci\u00f3n de la firma de la cadena de certificados y requiere que una CA haya firmado un certificado malicioso o que la aplicaci\u00f3n contin\u00fae con la verificaci\u00f3n del certificado a pesar de no poder construir una ruta hacia un emisor confiable. Un atacante puede crear una direcci\u00f3n de correo electr\u00f3nico maliciosa en un certificado para desbordar una cantidad arbitraria de bytes que contengan el car\u00e1cter \".\" (decimal 46) en la pila de memoria. Este desbordamiento del b\u00fafer podr\u00eda provocar un bloqueo (provocando una denegaci\u00f3n de servicio). En un cliente TLS, esto se puede desencadenar conect\u00e1ndose a un servidor malicioso. En un servidor TLS, esto puede activarse si el servidor solicita la autenticaci\u00f3n del cliente y se conecta un cliente malicioso."}], "lastModified": "2025-11-04T20:16:04.950", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BE1F59CA-02F2-4374-A129-18713496B58B", "versionEndExcluding": "3.0.7", "versionStartIncluding": "3.0.0"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5C675112-476C-4D7C-BCB9-A2FB2D0BC9FD"}, {"criteria": "cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E30D0E6F-4AE8-4284-8716-991DFA48CC5D"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:*", "vulnerable": true, "matchCriteriaId": "CAC42CA8-8B01-4A19-A83C-A7D4D08E5E43", "versionEndExcluding": "18.11.0", "versionStartIncluding": "18.0.0"}, {"criteria": "cpe:2.3:a:nodejs:node.js:18.12.0:*:*:*:lts:*:*:*", "vulnerable": true, "matchCriteriaId": "7B1F87EE-4E30-4832-BF01-8501E94380EE"}, {"criteria": "cpe:2.3:a:nodejs:node.js:19.0.0:*:*:*:-:*:*:*", "vulnerable": true, "matchCriteriaId": "F568BBC5-0D8E-499C-9F3E-DDCE5F10F9D5"}], "operator": "OR"}]}], "sourceIdentifier": "[email protected]"}