CVE-2016-1000339 (Medium) detected in bcprov-jdk15on-1.52.jar

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CVE-2016-1000339 - Medium 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 version 1.55 and earlier the primary engine class used for AES was AESFastEngine. Due to the highly table driven approach used in the algorithm it turns out that if the data channel on the CPU can be monitored the lookup table accesses are sufficient to leak information on the AES key being used. There was also a leak in AESEngine although it was substantially less. AESEngine has been modified to remove any signs of leakage (testing carried out on Intel X86-64) and is now the primary AES class for the BC JCE provider from 1.56. Use of AESFastEngine is now only recommended where otherwise deemed appropriate.

Publish Date: 2018-06-04

URL: CVE-2016-1000339

CVSS 3 Score Details (5.3)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: Low
  • Integrity Impact: None
  • 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-2016-1000339

Release Date: 2018-06-04

Fix Resolution: 1.56

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