{"id": "CVE-2022-1473", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 5.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "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": "2022-05-03T16:15:18.957", "references": [{"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-953464.pdf", "source": "openssl-security@openssl.org"}, {"url": "https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=64c85430f95200b6b51fe9475bd5203f7c19daf1", "source": "openssl-security@openssl.org"}, {"url": "https://security.gentoo.org/glsa/202210-02", "tags": ["Third Party Advisory"], "source": "openssl-security@openssl.org"}, {"url": "https://security.netapp.com/advisory/ntap-20220602-0009/", "tags": ["Third Party Advisory"], "source": "openssl-security@openssl.org"}, {"url": "https://www.openssl.org/news/secadv/20220503.txt", "tags": ["Vendor Advisory"], "source": "openssl-security@openssl.org"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-459"}]}], "descriptions": [{"lang": "en", "value": "The OPENSSL_LH_flush() function, which empties a hash table, contains a bug that breaks reuse of the memory occuppied by the removed hash table entries. This function is used when decoding certificates or keys. If a long lived process periodically decodes certificates or keys its memory usage will expand without bounds and the process might be terminated by the operating system causing a denial of service. Also traversing the empty hash table entries will take increasingly more time. Typically such long lived processes might be TLS clients or TLS servers configured to accept client certificate authentication. The function was added in the OpenSSL 3.0 version thus older releases are not affected by the issue. Fixed in OpenSSL 3.0.3 (Affected 3.0.0,3.0.1,3.0.2)."}, {"lang": "es", "value": "La funci\u00f3n OPENSSL_LH_flush(), que vac\u00eda una tabla hash, contiene un error que rompe el re\u00faso de la memoria ocupada por las entradas de la tabla hash eliminadas. Esta funci\u00f3n es usado cuando son descodificados certificados o claves. Si un proceso de larga duraci\u00f3n decodifica peri\u00f3dicamente certificados o claves, su uso de memoria ser\u00e1 expandida sin l\u00edmites y el proceso podr\u00eda ser terminado por el sistema operativo causando una denegaci\u00f3n de servicio. Adem\u00e1s, recorrer las entradas vac\u00edas de la tabla hash llevar\u00e1 cada vez m\u00e1s tiempo. Normalmente, estos procesos de larga duraci\u00f3n pueden ser clientes TLS o servidores TLS configurados para aceptar la autenticaci\u00f3n de certificados de clientes. La funci\u00f3n fue a\u00f1adida en la versi\u00f3n 3.0 de OpenSSL, por lo que las versiones anteriores no est\u00e1n afectadas por el problema. 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