GHSA-6528-wvf6-f6qgHighCVSS 7.5
Pycrypto generates weak key parameters
🔗 CVE IDs covered (1)
📋 Description
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 products1
- pip/pycrypto:<= 2.6.1
🔗 References (9)
- https://nvd.nist.gov/vuln/detail/CVE-2018-6594
- https://github.com/dlitz/pycrypto/issues/253
- https://github.com/TElgamal/attack-on-pycrypto-elgamal
- https://github.com/advisories/GHSA-6528-wvf6-f6qg
- https://lists.debian.org/debian-lts-announce/2018/02/msg00018.html
- https://security.gentoo.org/glsa/202007-62
- https://github.com/pypa/advisory-database/tree/main/vulns/pycrypto/PYSEC-2018-97.yaml
- https://usn.ubuntu.com/3616-1
- https://usn.ubuntu.com/3616-2