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 to vulnerable library: /home/wss-scanner/.gradle/caches/modules-2/files-2.1/org.bouncycastle/bcprov-jdk15on/1.56/a153c6f9744a3e9dd6feab5e210e1c9861362ec7/bcprov-jdk15on-1.56.jar
In Legion of the Bouncy Castle BC before 1.61 and BC-FJA before 1.0.1.2, attackers can obtain sensitive information about a private exponent because of Observable Differences in Behavior to Error Inputs. This occurs in org.bouncycastle.crypto.encodings.OAEPEncoding. Sending invalid ciphertext that decrypts to a short payload in the OAEP Decoder could result in the throwing of an early exception, potentially leaking some information about the private exponent of the RSA private key performing the encryption.
CVE-2020-26939 - Medium Severity Vulnerability
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: /app/build.gradle
Path to vulnerable library: /home/wss-scanner/.gradle/caches/modules-2/files-2.1/org.bouncycastle/bcprov-jdk15on/1.56/a153c6f9744a3e9dd6feab5e210e1c9861362ec7/bcprov-jdk15on-1.56.jar
Dependency Hierarchy: - lint-gradle-26.6.3 (Root Library) - sdk-common-26.6.3.jar - :x: **bcprov-jdk15on-1.56.jar** (Vulnerable Library)
Found in base branch: master
In Legion of the Bouncy Castle BC before 1.61 and BC-FJA before 1.0.1.2, attackers can obtain sensitive information about a private exponent because of Observable Differences in Behavior to Error Inputs. This occurs in org.bouncycastle.crypto.encodings.OAEPEncoding. Sending invalid ciphertext that decrypts to a short payload in the OAEP Decoder could result in the throwing of an early exception, potentially leaking some information about the private exponent of the RSA private key performing the encryption.
Publish Date: 2020-11-02
URL: CVE-2020-26939
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.Type: Upgrade version
Release Date: 2020-11-02
Fix Resolution: org.bouncycastle:bcprov-jdk14:1.61,org.bouncycastle:bcprov-ext-debug-jdk15on:1.61,org.bouncycastle:bcprov-debug-jdk15on:1.61,org.bouncycastle:bcprov-ext-jdk15on:1.61,org.bouncycastle:bcprov-jdk15on:1.61
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