CVE-2020-15522 (Medium) detected in bcprov-jdk15on-1.55.jar

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CVE-2020-15522 - Medium Severity Vulnerability

Vulnerable Library - bcprov-jdk15on-1.55.jar

The Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms. This jar contains JCE provider and lightweight API for the Bouncy Castle Cryptography APIs for JDK 1.5 to JDK 1.8.

Library home page: http://www.bouncycastle.org/java.html

Path to dependency file: /pom.xml

Path to vulnerable library: /home/wss-scanner/.m2/repository/org/bouncycastle/bcprov-jdk15on/1.55/bcprov-jdk15on-1.55.jar

Dependency Hierarchy:

• java-jwt-3.2.0.jar (Root Library)
  • ❌ bcprov-jdk15on-1.55.jar (Vulnerable Library)

Found in HEAD commit: e022312630d07a000d07ace8bd86a7f0590a0f65

Found in base branch: master

Vulnerability Details

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.

Publish Date: 2021-05-20

URL: CVE-2020-15522

CVSS 3 Score Details (5.9)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: High
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: High
  • Integrity Impact: None
  • Availability Impact: None

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://github.com/bcgit/bc-java/wiki/CVE-2020-15522

Release Date: 2021-05-20

Fix Resolution: org.bouncycastle:bc-fips:1.0.2.1;org.bouncycastle:bc-fips-debug:1.0.2.1;org.bouncycastle:bcprov-ext-jdk14:1.66;org.bouncycastle:bcprov-ext-jdk15on:1.66;org.bouncycastle:bcprov-jdk14:1.66;org.bouncycastle:bcprov-jdk15on:1.66;BouncyCastle - 1.8.9;Portable.BouncyCastle - 1.8.8