CVE-2016-1000343: In Bouncy Castle JCE Provider the DSA key pair generator generates a weak private key if used with default values

CVE-2016-1000343 · Severity: low · CVSS 3 · Published 2018-10-17

In Bouncy Castle JCE Provider the DSA key pair generator generates a weak private key if used with default values

Technologies: org.bouncycastle:bcprov-jdk14 (Maven), org.bouncycastle:bcprov-jdk15 (Maven), org.bouncycastle:bcprov-jdk15on (Maven). Vendors: Maven.

Quick answers

Is CVE-2016-1000343 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2016-1000343 being exploited in the wild.
How severe is CVE-2016-1000343?
Low severity, with a CVSS score of 3, published 17 October 2018.
Which products and versions are affected?
org.bouncycastle:bcprov-jdk14 (Maven) ECOSYSTEM:introduced=0,fixed=1.56; org.bouncycastle:bcprov-jdk15 (Maven) ECOSYSTEM:introduced=0,fixed=1.56; org.bouncycastle:bcprov-jdk15on (Maven) ECOSYSTEM:introduced=0,fixed=1.56.
Is there a fix for CVE-2016-1000343?
Yes. org.bouncycastle:bcprov-jdk14 (Maven): upgrade to 1.56 or later; org.bouncycastle:bcprov-jdk15 (Maven): upgrade to 1.56 or later; org.bouncycastle:bcprov-jdk15on (Maven): upgrade to 1.56 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2016-1000343?
Check whether you run org.bouncycastle:bcprov-jdk14 (Maven), org.bouncycastle:bcprov-jdk15 (Maven) or org.bouncycastle:bcprov-jdk15on (Maven) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • org.bouncycastle:bcprov-jdk14 (Maven): upgrade to 1.56 or later
    # set org.bouncycastle:bcprov-jdk14 to 1.56 in your pom.xml or build.gradle
  • org.bouncycastle:bcprov-jdk15 (Maven): upgrade to 1.56 or later
    # set org.bouncycastle:bcprov-jdk15 to 1.56 in your pom.xml or build.gradle
  • org.bouncycastle:bcprov-jdk15on (Maven): upgrade to 1.56 or later
    # set org.bouncycastle:bcprov-jdk15on to 1.56 in your pom.xml or build.gradle

Affected products

  • org.bouncycastle:bcprov-jdk14 (Maven) ECOSYSTEM:introduced=0,fixed=1.56
  • org.bouncycastle:bcprov-jdk15 (Maven) ECOSYSTEM:introduced=0,fixed=1.56
  • org.bouncycastle:bcprov-jdk15on (Maven) ECOSYSTEM:introduced=0,fixed=1.56

Identifiers

  • CVE-2016-1000343
  • GHSA-rrvx-pwf8-p59p

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