CVE-2022-23806: golang: crypto/elliptic: IsOnCurve returns true for invalid field elements

Severity: Critical

CVSS Score: 9.1

Curve.IsOnCurve in crypto/elliptic in Go before 1.16.14 and 1.17.x before 1.17.7 can incorrectly return true in situations with a big.Int value that is not a valid field element.