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Filtered by vendor Fastecdsa Project Subscribe
Filtered by product Fastecdsa
Total 1 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2020-12607 1 Fastecdsa Project 1 Fastecdsa 2020-06-03 5.0 MEDIUM 7.5 HIGH
An issue was discovered in fastecdsa before 2.1.2. When using the NIST P-256 curve in the ECDSA implementation, the point at infinity is mishandled. This means that for an extreme value in k and s^-1, the signature verification fails even if the signature is correct. This behavior is not solely a usability problem. There are some threat models where an attacker can benefit by successfully guessing users for whom signature verification will fail.