Description
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.
Remediation
References
https://github.com/bcgit/bc-java/wiki/CVE-2020-26939
https://lists.apache.org/thread.html/r8c36ba34e80e05eecb1f80071cc834d705616f315b634ec0c7d8f42e%40%3Cissues.solr.apache.org%3E
Related Vulnerabilities
CVE-2019-1354 Vulnerability in maven package org.webjars.npm:nodegit
CVE-2023-2138 Vulnerability in npm package @nuxtlabs/github-module
CVE-2021-21351 Vulnerability in maven package com.thoughtworks.xstream:xstream
CVE-2019-19919 Vulnerability in maven package li.rudin.mavenjs:handlebars
CVE-2022-31070 Vulnerability in npm package @finastra/nestjs-proxy