CVE-2015-7744

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"wolfSSL (anteriormente CyaSSL) en versiones anteriores a 3.6.8 no maneja correctamente fallos asociados con el proceso Chinese Remainder Theorem (CRT) cuando permiten el intercambio de claves ef\u00edmeras sin optimizaciones de memoria baja en un servidor, lo que hace que sea m\u00e1s f\u00e1cil para atacantes remotos obtener claves privadas RSA mediante la captura de un apret\u00f3n de manos TLS, tambi\u00e9n conocido como un ataque Lenstra."}], "id": "CVE-2015-7744", "lastModified": "2026-06-17T00:33:03.397", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "HIGH", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 2.6, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:H/Au:N/C:P/I:N/A:N", "version": "2.0"}, "exploitabilityScore": 4.9, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, 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{"bugzilla": {"description": "wolfSSL: insufficient hardening of RSA-CRT implementation (Oracle MySQL CPU Jan 2016)", "id": "1301488", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1301488"}, "csaw": false, "cvss": {"cvss_base_score": "2.6", "cvss_scoring_vector": "AV:N/AC:H/Au:N/C:P/I:N/A:N", "status": "draft"}, "cwe": "CWE-358", "details": ["wolfSSL (formerly CyaSSL) before 3.6.8 does not properly handle faults associated with the Chinese Remainder Theorem (CRT) process when allowing ephemeral key exchange without low memory optimizations on a server, which makes it easier for remote attackers to obtain private RSA keys by capturing TLS handshakes, aka a Lenstra attack."], "name": "CVE-2015-7744", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "mysql55-mysql", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "mysql", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "mariadb", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/a:redhat:openstack:5::el6", "fix_state": "Not affected", "package_name": "mariadb-galera", "product_name": "Red Hat Enterprise Linux OpenStack Platform 5 (Icehouse)"}, {"cpe": "cpe:/a:redhat:openstack:6", "fix_state": "Not affected", "package_name": "mariadb-galera", "product_name": "Red Hat Enterprise Linux OpenStack Platform 6 (Juno)"}, {"cpe": "cpe:/a:redhat:openstack:7", "fix_state": "Not affected", "package_name": "mariadb-galera", "product_name": "Red Hat Enterprise Linux OpenStack Platform 7 (Kilo)"}, {"cpe": "cpe:/a:redhat:rhel_software_collections:2", "fix_state": "Not affected", "package_name": "mariadb55-mariadb", "product_name": "Red Hat Software Collections"}, {"cpe": "cpe:/a:redhat:rhel_software_collections:2", "fix_state": "Not affected", "package_name": "mysql55-mysql", "product_name": "Red Hat Software Collections"}, {"cpe": "cpe:/a:redhat:rhel_software_collections:2", "fix_state": "Not affected", "package_name": "rh-mariadb100-mariadb", "product_name": "Red Hat Software Collections"}, {"cpe": "cpe:/a:redhat:rhel_software_collections:2", "fix_state": "Not affected", "package_name": "rh-mysql56-mysql", "product_name": "Red Hat Software Collections"}], "public_date": "2015-01-20T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2015-7744\nhttps://nvd.nist.gov/vuln/detail/CVE-2015-7744\nhttp://www.oracle.com/technetwork/topics/security/cpujan2016verbose-2367956.html"], "threat_severity": "Low"}

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