Description (CNA)
lib/Crypto/PublicKey/ElGamal.py in PyCrypto through 2.6.1 generates weak ElGamal key parameters, which allows attackers to obtain sensitive information by reading ciphertext data (i.e., it does not have semantic security in face of a ciphertext-only attack). The Decisional Diffie-Hellman (DDH) assumption does not hold for PyCrypto's ElGamal implementation.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| n/a / n/a | affected n/a |
CWE
No CWE identifiers supplied.
References
- https://github.com/TElgamal/attack-on-pycrypto-elgamal
- https://usn.ubuntu.com/3616-1/
- https://github.com/dlitz/pycrypto/issues/253
- https://lists.debian.org/debian-lts-announce/2018/02/msg00018.html
- https://usn.ubuntu.com/3616-2/
- https://security.gentoo.org/glsa/202007-62
ADP enrichment
No English description supplied.