CVE-2018-12437

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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:libtom:libtomcrypt:*:*:*:*:*:*:*:*", "matchCriteriaId": "84FB6493-6203-4C0A-98EE-C7435CA463CD", "versionEndIncluding": "1.18.1", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:trustedfirmware:op-tee:*:*:*:*:*:*:*:*", "matchCriteriaId": "D9E29052-677C-4BAD-8D5A-EEDCEC46A750", "versionEndIncluding": "3.5.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "LibTomCrypt through 1.18.1 allows a memory-cache side-channel attack on ECDSA signatures, aka the Return Of the Hidden Number Problem or ROHNP. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host."}, {"lang": "es", "value": "LibTomCrypt hasta la versi\u00f3n 1.18.1 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 ECDSA, el atacante necesita acceso a la m\u00e1quina local o a una m\u00e1quina virtual diferente en el mismo host f\u00edsico."}], "id": "CVE-2018-12437", "lastModified": "2026-06-17T01:37:47.087", "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}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "PHYSICAL", "availabilityImpact": "NONE", "baseScore": 4.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 0.5, "impactScore": 4.0, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2018-06-15T02:29:00.487", "references": [{"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://security.gentoo.org/glsa/202007-53"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Technical Description", "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": ["Third Party Advisory"], "url": "https://security.gentoo.org/glsa/202007-53"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Technical Description", "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"}]}

{"bugzilla": {"description": "libtomcrypt: memory-cache side-channel attack on ECDSA signatures", "id": "1591904", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1591904"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "status": "draft"}, "cwe": "CWE-385", "details": ["LibTomCrypt through 1.18.1 allows a memory-cache side-channel attack on ECDSA signatures, aka the Return Of the Hidden Number Problem or ROHNP. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host."], "name": "CVE-2018-12437", "package_state": [{"cpe": "cpe:/a:redhat:cloudforms_managementengine:5", "fix_state": "Not affected", "package_name": "libtomcrypt", "product_name": "CloudForms Management Engine 5"}, {"cpe": "cpe:/a:redhat:ansible_engine:2", "fix_state": "Not affected", "package_name": "libtomcrypt", "product_name": "Red Hat Ansible Engine 2"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "libtomcrypt", "product_name": "Red Hat Enterprise Linux 7"}], "public_date": "2018-06-13T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2018-12437\nhttps://nvd.nist.gov/vuln/detail/CVE-2018-12437"], "statement": "This flaw was found to be a duplicate of CVE-2018-0495. Please see https://access.redhat.com/security/cve/CVE-2018-0495 for information about affected products and security errata."}

{}