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without knowledge of a private key via crafted TLS Handshake Protocol traffic to a server that recognizes a Certification Authority with DH support."}, {"lang": "es", "value": "La funci\u00f3n ssl3_get_cert_verify en s3_srvr.c en OpenSSL 1.0.0 anterior a 1.0.0p y 1.0.1 anterior a 1.0.1k acepta la autenticaci\u00f3n de clientes con un certificado Diffie-Hellman (DH) sin necesidad de un mensaje CertificateVerify, lo que permite a atacantes remotos obtener el acceso sin conocimiento de una clave privada a trav\u00e9s de trafico TLS Handshake Protocol manipulado a un servidor que reconoce una autoridad de certificaci\u00f3n con soporte DH."}], "id": "CVE-2015-0205", "lastModified": "2025-04-12T10:46:40.837", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2015-01-09T02:59:11.273", "references": [{"source": "secalert@redhat.com", "url": "http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10679"}, {"source": "secalert@redhat.com", "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-January/147938.html"}, {"source": "secalert@redhat.com", "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-January/148363.html"}, {"source": "secalert@redhat.com", "url": "http://lists.opensuse.org/opensuse-security-announce/2015-01/msg00021.html"}, {"source": "secalert@redhat.com", "url": "http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00027.html"}, {"source": "secalert@redhat.com", "url": 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{"affected_release": [{"advisory": "RHSA-2015:0066", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "openssl-0:1.0.1e-30.el6_6.5", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2015-01-21T00:00:00Z"}, {"advisory": "RHSA-2015:0066", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "openssl-1:1.0.1e-34.el7_0.7", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2015-01-21T00:00:00Z"}], "bugzilla": {"description": "openssl: DH client certificates accepted without verification", "id": "1180239", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1180239"}, "csaw": false, "cvss": {"cvss_base_score": "2.6", "cvss_scoring_vector": "AV:N/AC:H/Au:N/C:P/I:N/A:N", "status": "verified"}, "details": ["The ssl3_get_cert_verify function in s3_srvr.c in OpenSSL 1.0.0 before 1.0.0p and 1.0.1 before 1.0.1k accepts client authentication with a Diffie-Hellman (DH) certificate without requiring a CertificateVerify message, which allows remote attackers to obtain access without knowledge of a private key via crafted TLS Handshake Protocol traffic to a server that recognizes a Certification Authority with DH support.", "It was found that an OpenSSL server would, under certain conditions, accept Diffie-Hellman client certificates without the use of a private key. An attacker could use a user's client certificate to authenticate as that user, without needing the private key."], "name": "CVE-2015-0205", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "openssl", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "openssl097a", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "openssl098e", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "openssl098e", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:6", "fix_state": "Not affected", "package_name": "openssl", "product_name": "Red Hat JBoss Enterprise Application Platform 6"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_web_server:1", "fix_state": "Not affected", "package_name": "openssl", "product_name": "Red Hat JBoss Enterprise Web Server 1"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_web_server:2", "fix_state": "Not affected", "package_name": "openssl", "product_name": "Red Hat JBoss Enterprise Web Server 2"}, {"cpe": "cpe:/a:redhat:storage:2.1", "fix_state": "Affected", "package_name": "openssl", "product_name": "Red Hat Storage 2.1"}], "public_date": "2015-01-08T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2015-0205\nhttps://nvd.nist.gov/vuln/detail/CVE-2015-0205\nhttps://www.openssl.org/news/secadv_20150108.txt"], "statement": "This issue does not affect the version of openssl and openssl097a as shipped with Red Hat Enterprise Linux 5. This issue does not affect the version of openssl098e as shipped with Red Hat Enterprise Linux 6 and 7.", "threat_severity": "Low"}