Parity Libsecp256k1 vulnerabilities

• parity libsecp256k1 Overflow in libsecp256k1 CVE-2021-38195 Fix available 9.8 CriticalJuly 13, 2021
• parity libsecp256k1 Observable Discrepancy in libsecp256k1-rs CVE-2019-20399 Fix available 5.9 MediumJanuary 22, 2020
• parity libsecp256k1 libsecp256k1 contains side-channel timing attack CVE-2019-25003 Fix available 7.5 HighOctober 14, 2019