CVE-2018-12434

{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "descriptions": [{"lang": "en", "value": "LibreSSL before 2.6.5 and 2.7.x before 2.7.4 allows a memory-cache side-channel attack on DSA and ECDSA signatures, aka the Return Of the Hidden Number Problem or ROHNP. To discover a key, the attacker needs access to either the local machine or a different virtual machine on the same physical host."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2018-06-15T02:00:00.000Z", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-2.7.4-relnotes.txt"}, {"tags": ["x_refsource_MISC"], "url": "https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/"}, {"tags": ["x_refsource_MISC"], "url": "https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-2.6.5-relnotes.txt"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2018-12434", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "n/a", "version": {"version_data": [{"version_value": "n/a"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "LibreSSL before 2.6.5 and 2.7.x before 2.7.4 allows a memory-cache side-channel attack on DSA and ECDSA signatures, aka the Return Of the Hidden Number Problem or ROHNP. To discover a key, the attacker needs access to either the local machine or a different virtual machine on the same physical host."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-2.7.4-relnotes.txt", "refsource": "MISC", "url": "https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-2.7.4-relnotes.txt"}, {"name": "https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/", "refsource": "MISC", "url": "https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/"}, {"name": "https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-2.6.5-relnotes.txt", "refsource": "MISC", "url": "https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-2.6.5-relnotes.txt"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-05T08:38:06.316Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-2.7.4-relnotes.txt"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-2.6.5-relnotes.txt"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2018-12434", "datePublished": "2018-06-15T02:00:00.000Z", "dateReserved": "2018-06-14T00:00:00.000Z", "dateUpdated": "2024-09-16T22:52:15.412Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:openbsd:libressl:*:*:*:*:*:*:*:*", "matchCriteriaId": "0E0B0BEC-AEA8-49B1-9F6F-D68E9AF6E286", "versionEndExcluding": "2.6.5", "vulnerable": true}, {"criteria": "cpe:2.3:a:openbsd:libressl:2.7.0:*:*:*:*:*:*:*", "matchCriteriaId": "39DDFDEF-AD05-444B-8BCE-018EC7393F76", "vulnerable": true}, {"criteria": "cpe:2.3:a:openbsd:libressl:2.7.1:*:*:*:*:*:*:*", "matchCriteriaId": "2D898BAE-26E6-43D4-AF78-A802AAAE4133", "vulnerable": true}, {"criteria": "cpe:2.3:a:openbsd:libressl:2.7.2:*:*:*:*:*:*:*", "matchCriteriaId": "4B2CEB91-A7B2-49FC-A178-DADFD987D409", "vulnerable": true}, {"criteria": "cpe:2.3:a:openbsd:libressl:2.7.3:*:*:*:*:*:*:*", "matchCriteriaId": "D3FC36B7-EBF7-478F-8D00-1FA201E081F4", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "LibreSSL before 2.6.5 and 2.7.x before 2.7.4 allows a memory-cache side-channel attack on DSA and ECDSA signatures, aka the Return Of the Hidden Number Problem or ROHNP. To discover a key, the attacker needs access to either the local machine or a different virtual machine on the same physical host."}, {"lang": "es", "value": "LibreSSL en versiones anteriores a la 2.6.5 y versiones 2.7.x anteriores a la 2.7.4 permite un ataque de canal lateral por cach\u00e9 de memoria en las firmas DSA y ECDSA. Esto tambi\u00e9n se conoce como Return Of the Hidden Number Problem (ROHNP). Para descubrir una clave, el atacante necesita acceso a la m\u00e1quina local o a una m\u00e1quina virtual diferente en el mismo host f\u00edsico."}], "id": "CVE-2018-12434", "lastModified": "2026-06-17T01:37:46.697", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 1.9, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:L/AC:M/Au:N/C:P/I:N/A:N", "version": "2.0"}, "exploitabilityScore": 3.4, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 4.7, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.0"}, "exploitabilityScore": 1.0, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2018-06-15T02:29:00.330", "references": [{"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-2.6.5-relnotes.txt"}, {"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-2.7.4-relnotes.txt"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-2.6.5-relnotes.txt"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-2.7.4-relnotes.txt"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-200"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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