CVE-2020-28052: Logic error in Legion of the Bouncy Castle BC Java

CVE-2020-28052 · Severity: low · CVSS 3.1 · Published 2021-04-30

Logic error in Legion of the Bouncy Castle BC Java

Technologies: org.bouncycastle:bcprov-ext-jdk15on (Maven), org.bouncycastle:bcprov-ext-jdk16 (Maven), org.bouncycastle:bcprov-jdk14 (Maven), org.bouncycastle:bcprov-jdk15 (Maven), org.bouncycastle:bcprov-jdk15on (Maven), org.bouncycastle:bcprov-jdk15to18 (Maven), org.bouncycastle:bcprov-jdk16 (Maven). Vendors: Maven.

Quick answers

Is CVE-2020-28052 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2020-28052 being exploited in the wild.
How severe is CVE-2020-28052?
Low severity, with a CVSS score of 3.1, published 30 April 2021.
Which products and versions are affected?
org.bouncycastle:bcprov-ext-jdk15on (Maven) ECOSYSTEM:introduced=1.65,fixed=1.67; org.bouncycastle:bcprov-ext-jdk16 (Maven) ECOSYSTEM:introduced=1.65,fixed=1.67; org.bouncycastle:bcprov-jdk14 (Maven) ECOSYSTEM:introduced=1.65,fixed=1.67; org.bouncycastle:bcprov-jdk15 (Maven) ECOSYSTEM:introduced=1.65,fixed=1.67; and 3 more.
Is there a fix for CVE-2020-28052?
Yes. org.bouncycastle:bcprov-ext-jdk15on (Maven): upgrade to 1.67 or later; org.bouncycastle:bcprov-ext-jdk16 (Maven): upgrade to 1.67 or later; org.bouncycastle:bcprov-jdk14 (Maven): upgrade to 1.67 or later; org.bouncycastle:bcprov-jdk15 (Maven): upgrade to 1.67 or later; org.bouncycastle:bcprov-jdk15on (Maven): upgrade to 1.67 or later; org.bouncycastle:bcprov-jdk15to18 (Maven): upgrade to 1.67 or later; org.bouncycastle:bcprov-jdk16 (Maven): upgrade to 1.67 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2020-28052?
Check whether you run org.bouncycastle:bcprov-ext-jdk15on (Maven), org.bouncycastle:bcprov-ext-jdk16 (Maven), org.bouncycastle:bcprov-jdk14 (Maven) or one of the others listed 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-ext-jdk15on (Maven): upgrade to 1.67 or later
    # set org.bouncycastle:bcprov-ext-jdk15on to 1.67 in your pom.xml or build.gradle
  • org.bouncycastle:bcprov-ext-jdk16 (Maven): upgrade to 1.67 or later
    # set org.bouncycastle:bcprov-ext-jdk16 to 1.67 in your pom.xml or build.gradle
  • org.bouncycastle:bcprov-jdk14 (Maven): upgrade to 1.67 or later
    # set org.bouncycastle:bcprov-jdk14 to 1.67 in your pom.xml or build.gradle
  • org.bouncycastle:bcprov-jdk15 (Maven): upgrade to 1.67 or later
    # set org.bouncycastle:bcprov-jdk15 to 1.67 in your pom.xml or build.gradle
  • org.bouncycastle:bcprov-jdk15on (Maven): upgrade to 1.67 or later
    # set org.bouncycastle:bcprov-jdk15on to 1.67 in your pom.xml or build.gradle
  • org.bouncycastle:bcprov-jdk15to18 (Maven): upgrade to 1.67 or later
    # set org.bouncycastle:bcprov-jdk15to18 to 1.67 in your pom.xml or build.gradle
  • org.bouncycastle:bcprov-jdk16 (Maven): upgrade to 1.67 or later
    # set org.bouncycastle:bcprov-jdk16 to 1.67 in your pom.xml or build.gradle

Affected products

  • org.bouncycastle:bcprov-ext-jdk15on (Maven) ECOSYSTEM:introduced=1.65,fixed=1.67
  • org.bouncycastle:bcprov-ext-jdk16 (Maven) ECOSYSTEM:introduced=1.65,fixed=1.67
  • org.bouncycastle:bcprov-jdk14 (Maven) ECOSYSTEM:introduced=1.65,fixed=1.67
  • org.bouncycastle:bcprov-jdk15 (Maven) ECOSYSTEM:introduced=1.65,fixed=1.67
  • org.bouncycastle:bcprov-jdk15on (Maven) ECOSYSTEM:introduced=1.65,fixed=1.67
  • org.bouncycastle:bcprov-jdk15to18 (Maven) ECOSYSTEM:introduced=1.65,fixed=1.67
  • org.bouncycastle:bcprov-jdk16 (Maven) ECOSYSTEM:introduced=1.65,fixed=1.67

Identifiers

  • CVE-2020-28052
  • GHSA-73xv-w5gp-frxh

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