PyCrypto before 2.6 does not produce appropriate prime numbers when using an ElGamal scheme to generate a key, which reduces the signature space or public key space and makes it easier for attackers to conduct brute force attacks to obtain the private key.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade py-crypto. | Aug 30, 2017 | Jun 16, 2012 |
| Freebsd | — | Upgrade py-pycrypto | Dec 10, 2025 | Jun 24, 2012 |
| Gentoo Linux | — | Upgrade dev-python/pycrypto. | Oct 30, 2017 | Jun 16, 2012 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Apr 18, 2012 |
| Suse | — | Upgrade python-cryptoUpgrade python2-pycryptoUpgrade python-pycryptoUpgrade python3-pycrypto | Apr 26, 2018 | Jun 28, 2013 |
| Ubuntu | — | Upgrade python-crypto | Nov 8, 2024 | Jun 17, 2012 |
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