CVE-2017-9526

{"id": "CVE-2017-9526", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 4.3, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "MEDIUM", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV30": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 5.9, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 2.2}]}, "published": "2017-06-11T02:29:00.183", "references": [{"url": "http://www.debian.org/security/2017/dsa-3880", "source": "cve@mitre.org"}, {"url": "http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html", "source": "cve@mitre.org"}, {"url": "http://www.securityfocus.com/bid/99046", "tags": ["Third Party Advisory", "VDB Entry"], "source": "cve@mitre.org"}, {"url": "https://bugzilla.suse.com/show_bug.cgi?id=1042326", "tags": ["Issue Tracking", "Patch"], "source": "cve@mitre.org"}, {"url": "https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=5a22de904a0a366ae79f03ff1e13a1232a89e26b", "source": "cve@mitre.org"}, {"url": "https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=f9494b3f258e01b6af8bd3941ce436bcc00afc56", "source": "cve@mitre.org"}, {"url": "https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html", "source": "cve@mitre.org"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-200"}]}], "descriptions": [{"lang": "en", "value": "In Libgcrypt before 1.7.7, an attacker who learns the EdDSA session key (from side-channel observation during the signing process) can easily recover the long-term secret key. 1.7.7 makes a cipher/ecc-eddsa.c change to store this session key in secure memory, to ensure that constant-time point operations are used in the MPI library."}, {"lang": "es", "value": "En Libgcrypt, anterior a versi\u00f3n 1.7.7, un atacante que aprende la clave de sesi\u00f3n EdDSA (de la observaci\u00f3n del canal lateral durante el proceso de firma) puede f\u00e1cilmente recuperar la clave secreta a largo plazo  . 1.7.7 haciendo un cambio del archivo cipher/ecc-eddsa.c para almacenar esta clave de sesi\u00f3n en memoria segura, y as\u00ed garantizar que operaciones puntuales de tiempo constante sean usadas en la biblioteca MPI."}], "lastModified": "2023-11-07T02:50:47.410", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:gnupg:libgcrypt:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A66275EC-B910-4149-869D-6C0168547FAB", "versionEndIncluding": "1.7.6"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}