CVE-2023-26556

{"id": "CVE-2023-26556", "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.1, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 3.9}]}, "published": "2023-04-21T18:15:07.927", "references": [{"url": "https://github.com/IoFinnet/tss-lib/releases/tag/v2.0.0", "tags": ["Release Notes"], "source": "cve@mitre.org"}, {"url": "https://github.com/bnb-chain/tss-lib/tree/v1.3.5", "tags": ["Product"], "source": "cve@mitre.org"}, {"url": "https://gitlab.com/thorchain/tss/tss-lib/-/tags/v0.1.3", "tags": ["Release Notes"], "source": "cve@mitre.org"}, {"url": "https://medium.com/%40iofinnet/security-disclosure-for-ecdsa-and-eddsa-threshold-signature-schemes-4e969af7155b", "source": "cve@mitre.org"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-203"}]}], "descriptions": [{"lang": "en", "value": "io.finnet tss-lib before 2.0.0 can leak a secret key via a timing side-channel attack because it relies on the scalar-multiplication implementation in Go crypto/elliptic, which is not constant time (there is an if statement in a loop). One leak is in ecdsa/keygen/round_2.go. (bnb-chain/tss-lib and thorchain/tss are also affected.)"}], "lastModified": "2023-11-07T04:09:38.963", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:iofinnet:tss-lib:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5A407DB0-D561-404E-941A-EF988ABB8BDB", "versionEndExcluding": "2.0.0"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}