GHSA-6xx3-rg99-gc3p

ghsaUSosv

Timing based private key exposure in Bouncy Castle

view advisory published 2021-08-13Licence: CC-BY-4.0

Bouncy Castle BC Java before 1.66, BC C# .NET before 1.8.7, BC-FJA before 1.0.2.1, BC before 1.66, 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.

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describes (1)

Related CVEs.

IDseverity exploitable
CVE-2020-15522USmedium5.9—
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…
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references

External citations — patches, advisories, analysis.

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