CVE-2018-6594: Pycrypto generates weak key parameters
(updated )
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.
References
- github.com/TElgamal/attack-on-pycrypto-elgamal
- github.com/advisories/GHSA-6528-wvf6-f6qg
- github.com/dlitz/pycrypto
- github.com/dlitz/pycrypto/issues/253
- github.com/pypa/advisory-database/tree/main/vulns/pycrypto/PYSEC-2018-97.yaml
- lists.debian.org/debian-lts-announce/2018/02/msg00018.html
- nvd.nist.gov/vuln/detail/CVE-2018-6594
- security.gentoo.org/glsa/202007-62
- usn.ubuntu.com/3616-1
- usn.ubuntu.com/3616-2
Code Behaviors & Features
Detect and mitigate CVE-2018-6594 with GitLab Dependency Scanning
Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Dependency Scanning using SBOM also detects vulnerabilities from proprietary advisories that this site does not include. Learn more about Dependency Scanning using SBOM →