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CVE-2020-15522

Bouncy Castle BC Java before 1.66, BC C# .NET before 1.8.7, BC-FJA before 1.0.1.2, 1.0.2.1, and BC-FNA before 1.0.1.1 have a timing issue within the EC math li…

Impact

Bouncy Castle BC Java before 1.66, BC C# .NET before 1.8.7, BC-FJA before 1.0.1.2, 1.0.2.1, and BC-FNA before 1.0.1.1 have a timing issue within the EC math library that can expose information about the private key when an attacker is able to observe timing information for the generation of multiple deterministic ECDSA signatures.

Affected products

VendorProductAffected versions
BouncycastleBc-Csharp
before 1.8.7
BouncycastleBouncy Castle Fips .Net Api
before 1.0.1.1
BouncycastleFips Java Api
before 1.0.1.2
from 1.0.2 before 1.0.2.1
BouncycastleThe Bouncy Castle Crypto Package For Java
before 1.66

Weakness classification

References