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

Source: https://junglewise.ai/threats/cve-2020-28052-logic-error-in-legion-of-the-bouncy-castle-bc-java  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2021-04-30  
License: CC BY 4.0 with a link back

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)](https://junglewise.ai/threats/technologies/org-bouncycastle-bcprov-ext-jdk15on), [org.bouncycastle:bcprov-ext-jdk16 (Maven)](https://junglewise.ai/threats/technologies/org-bouncycastle-bcprov-ext-jdk16), [org.bouncycastle:bcprov-jdk14 (Maven)](https://junglewise.ai/threats/technologies/org-bouncycastle-bcprov-jdk14), [org.bouncycastle:bcprov-jdk15 (Maven)](https://junglewise.ai/threats/technologies/org-bouncycastle-bcprov-jdk15), [org.bouncycastle:bcprov-jdk15on (Maven)](https://junglewise.ai/threats/technologies/org-bouncycastle-bcprov-jdk15on), [org.bouncycastle:bcprov-jdk15to18 (Maven)](https://junglewise.ai/threats/technologies/org-bouncycastle-bcprov-jdk15to18), [org.bouncycastle:bcprov-jdk16 (Maven)](https://junglewise.ai/threats/technologies/org-bouncycastle-bcprov-jdk16). Vendors: [Maven](https://junglewise.ai/threats/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

  ```sh
  # 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

  ```sh
  # 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

  ```sh
  # 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

  ```sh
  # 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

  ```sh
  # 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

  ```sh
  # 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

  ```sh
  # 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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