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.
| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| pycrypto(PyPI) | 0 | N/A | N/A |
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