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Security Advisories

CVE-2020-26939

Published

Last updated

NVD

https://nvd.nist.gov/vuln/detail/CVE-2020-26939

CGA ID

CGA-3xph-wmgj-pf93

Severity

Unknown

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.

References

Affected packages


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