AntonKueltz

3 exploits Active since Jun 2020
CVE-2020-12607 WRITEUP HIGH WRITEUP
fastecdsa < 2.1.2 - Improper Verification of Cryptographic Signature
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.
CVSS 7.5
CVE-2020-12607 WRITEUP HIGH WRITEUP
fastecdsa < 2.1.2 - Improper Verification of Cryptographic Signature
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.
CVSS 7.5
CVE-2020-12607 WRITEUP HIGH WRITEUP
fastecdsa < 2.1.2 - Improper Verification of Cryptographic Signature
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.
CVSS 7.5