CVE-2012-2417

Description

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.

Predictions

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

References

• http://lists.fedoraproject.org/pipermail/package-announce/2012-June/081713.html
• http://lists.fedoraproject.org/pipermail/package-announce/2012-June/081759.html
• http://lists.fedoraproject.org/pipermail/package-announce/2012-June/081789.html
• http://secunia.com/advisories/49263
• http://www.debian.org/security/2012/dsa-2502
• http://www.mandriva.com/security/advisories?name=MDVSA-2012:117
• http://www.openwall.com/lists/oss-security/2012/05/25/1
• http://www.osvdb.org/82279
• http://www.securityfocus.com/bid/53687
• https://bugs.launchpad.net/pycrypto/+bug/985164
• https://exchange.xforce.ibmcloud.com/vulnerabilities/75871
• https://github.com/Legrandin/pycrypto/commit/9f912f13df99ad3421eff360d6a62d7dbec755c2
• https://github.com/dlitz/pycrypto/blob/373ea760f21701b162e8c4912a66928ee30d401a/ChangeLog
• https://hermes.opensuse.org/messages/15083589
• https://nvd.nist.gov/vuln/detail/CVE-2012-2417
• https://github.com/Legrandin/pycrypto
• https://github.com/pypa/advisory-database/tree/main/vulns/pycrypto/PYSEC-2012-16.yaml
• https://web.archive.org/web/20140724111917/http://secunia.com/advisories/49263
• https://web.archive.org/web/20200228184120/http://www.securityfocus.com/bid/53687

CWEs

CWE-310