CVE-2016-1000338 High Severity Vulnerability detected by WhiteSource

[mend-bolt-for-github]

CVE-2016-1000338 - 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.

path: /root/.m2/repository/org/bouncycastle/bcprov-jdk15on/1.52/bcprov-jdk15on-1.52.jar

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

Dependency Hierarchy:

• jasperreports-6.7.0.jar (Root Library)
  • itext-2.1.7.js6.jar
    • ❌ bcprov-jdk15on-1.52.jar (Vulnerable Library)

Vulnerability Details

In Bouncy Castle JCE Provider version 1.55 and earlier the DSA does not fully validate ASN.1 encoding of signature on verification. It is possible to inject extra elements in the sequence making up the signature and still have it validate, which in some cases may allow the introduction of 'invisible' data into a signed structure.

Publish Date: 2018-06-01

URL: CVE-2016-1000338

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: Change files

Origin: bcgit/bc-java@b0c3ce9#diff-3679f5a9d2b939d0d3ee1601a7774fb0

Release Date: 2016-10-14

Fix Resolution: Replace or update the following files: DSASigner.java, DSATest.java

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