CVE-2016-1000340 (High) detected in bcprov-jdk15on-1.52.jar

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CVE-2016-1000340 - High Severity Vulnerability

Vulnerable Library - bcprov-jdk15on-1.52.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: /epository/org/bouncycastle/bcprov-jdk15on/1.52/bcprov-jdk15on-1.52.jar

Dependency Hierarchy:

• ❌ bcprov-jdk15on-1.52.jar (Vulnerable Library)

Found in HEAD commit: bf45447c8b538d02f489d4f0b46a96632a27a1f8

Found in base branch: master

Vulnerability Details

In the Bouncy Castle JCE Provider versions 1.51 to 1.55, a carry propagation bug was introduced in the implementation of squaring for several raw math classes have been fixed (org.bouncycastle.math.raw.Nat???). These classes are used by our custom elliptic curve implementations (org.bouncycastle.math.ec.custom.**), so there was the possibility of rare (in general usage) spurious calculations for elliptic curve scalar multiplications. Such errors would have been detected with high probability by the output validation for our scalar multipliers.

Publish Date: 2018-06-04

URL: CVE-2016-1000340

CVSS 3 Score Details (7.5)

Base Score Metrics:

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

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-1000340

Release Date: 2018-06-04

Fix Resolution: 1.56

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