CVE-2020-15522: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

August 13, 2021 (updated May 30, 2023)

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.

References

github.com/advisories/GHSA-6xx3-rg99-gc3p
github.com/bcgit/bc-csharp/wiki/CVE-2020-15522
github.com/bcgit/bc-java/wiki/CVE-2020-15522
nvd.nist.gov/vuln/detail/CVE-2020-15522
security.netapp.com/advisory/ntap-20210622-0007/
www.bouncycastle.org/releasenotes.html

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