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…

published November 2, 2020

CVSS
—
EPSS
1%
Percentile
60.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00925 · 60.1th percentile
Published
2020-11-02T22:00Z
EPSS history
Timeline
  • 02 NOV 22:00Z
    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…
    cvelistv5