CVE-2020-26939

https://notcve.org/view.php?id=CVE-2020-26939

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. En Legion of the Bouncy Castle BC versiones anteriores a 1.61 y BC-FJA versiones anteriores a 1.0.1.2, los atacantes pueden obtener información confidencial sobre un exponente privado debido a las diferencias observables en el comportamiento de las entradas de error. Esto se presenta en org.bouncycastle.crypto.encodings.OAEPEncoding. • https://github.com/bcgit/bc-java/wiki/CVE-2020-26939 https://lists.apache.org/thread.html/r8c36ba34e80e05eecb1f80071cc834d705616f315b634ec0c7d8f42e%40%3Cissues.solr.apache.org%3E • CWE-203: Observable Discrepancy •