GHSA-6xx3-rg99-gc3p

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    GHSA-6xx3-rg99-gc3p

    Published: 13 Aug 2021Last Modified: 10 Sept 2026

    Summary: Timing based private key exposure in Bouncy Castle

    Details: 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.

    References: https://nvd.nist.gov/vuln/detail/CVE-2020-15522, https://github.com/bcgit/bc-csharp/wiki/CVE-2020-15522, https://github.com/bcgit/bc-java/wiki/CVE-2020-15522, https://security.netapp.com/advisory/ntap-20210622-0007, https://www.bouncycastle.org/releasenotes.html

    Affected packages

    Package

    Name: org.bouncycastle:bc-fips

    Purl: pkg:maven/org.bouncycastle/bc-fips

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.0.2.1

    Affected versions

    1.0.0
    1.0.1
    1.0.2

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    GHSA-6xx3-rg99-gc3p | CVE-DB