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MEDIUM5.1

GHSA-6xx3-rg99-gc3p

Timing based private key exposure in Bouncy Castle

Quick fix

GHSA-6xx3-rg99-gc3p — org.bouncycastle:bc-fips: upgrade to the fixed version with the command below.

# pom.xml: bump <version>1.0.2.1</version> for org.bouncycastle:bc-fips

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.

Are you affected?

Enter the version of the package you're using.

Affected packages

Maven/org.bouncycastle:bc-fips
Introduced in: 0Fixed in: 1.0.2.1
Fix# pom.xml: bump <version>1.0.2.1</version> for org.bouncycastle:bc-fips
Maven/org.bouncycastle:bcprov-ext-jdk15on
Introduced in: 0Fixed in: 1.66
Fix# pom.xml: bump <version>1.66</version> for org.bouncycastle:bcprov-ext-jdk15on
Maven/org.bouncycastle:bcprov-ext-jdk16
Introduced in: 0Fixed in: 1.66
Fix# pom.xml: bump <version>1.66</version> for org.bouncycastle:bcprov-ext-jdk16
Maven/org.bouncycastle:bcprov-jdk14
Introduced in: 0Fixed in: 1.66
Fix# pom.xml: bump <version>1.66</version> for org.bouncycastle:bcprov-jdk14
Maven/org.bouncycastle:bcprov-jdk15
Introduced in: 0Fixed in: 1.66
Fix# pom.xml: bump <version>1.66</version> for org.bouncycastle:bcprov-jdk15
Maven/org.bouncycastle:bcprov-jdk15on
Introduced in: 0Fixed in: 1.66
Fix# pom.xml: bump <version>1.66</version> for org.bouncycastle:bcprov-jdk15on
Maven/org.bouncycastle:bcprov-jdk15to18
Introduced in: 0Fixed in: 1.66
Fix# pom.xml: bump <version>1.66</version> for org.bouncycastle:bcprov-jdk15to18
Maven/org.bouncycastle:bcprov-jdk16
Introduced in: 0Fixed in: 1.66
Fix# pom.xml: bump <version>1.66</version> for org.bouncycastle:bcprov-jdk16
NuGet/BouncyCastle
Introduced in: 0Fixed in: 1.8.7
Fixdotnet add package BouncyCastle --version 1.8.7

References