Incorrect Validation of Big.Int in Curve.IsOnCurve in Go Crypto/Elliptic

Incorrect Validation of Big.Int in Curve.IsOnCurve in Go Crypto/Elliptic

CVE-2022-23806 · CRITICAL Severity

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

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.

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