CVE-2020-26939
CVE-2020-26939
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 5.3 · Medium · EPSS 0.9% · Fix available
- Published
- Updated
Stack: system
Affected products and versions
n/a
- Versions
- n/a: Affected
No fix published
bouncycastle Debian:12
- Affected ranges
- ECOSYSTEM: < 1.61-1
Update to 1.61-1
bouncycastle Debian:13
- Affected ranges
- ECOSYSTEM: < 1.61-1
Update to 1.61-1
bouncycastle Debian:14
- Affected ranges
- ECOSYSTEM: < 1.61-1
Update to 1.61-1
bouncycastle Ubuntu:Pro:16.04:LTS
- Versions
- 1.49+dfsg-3ubuntu1
- 1.51-4ubuntu1
- 1.51-4ubuntu1+esm1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
bouncycastle Ubuntu:Pro:18.04:LTS
- Versions
- 1.57-1
- 1.58-1
- 1.59-1
- 1.59-1ubuntu0.1~esm1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published