id: PYSEC-2012-16
details: 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.
affected:
- package:
    name: pycrypto
    ecosystem: PyPI
    purl: pkg:pypi/pycrypto
  ranges:
  - type: GIT
    repo: https://github.com/Legrandin/pycrypto
    events:
    - introduced: "0"
    - fixed: 9f912f13df99ad3421eff360d6a62d7dbec755c2
  - type: ECOSYSTEM
    events:
    - introduced: "0"
    - fixed: "2.6"
  versions:
  - 1.9a2
  - 1.9a5
  - 1.9a6
  - "2.0"
  - 2.0.1
  - 2.1.0
  - "2.2"
  - "2.3"
  - "2.4"
  - 2.4.1
  - "2.5"
references:
- type: FIX
  url: 
    https://github.com/Legrandin/pycrypto/commit/9f912f13df99ad3421eff360d6a62d7dbec755c2
- type: WEB
  url: https://bugs.launchpad.net/pycrypto/+bug/985164
- type: WEB
  url: http://www.openwall.com/lists/oss-security/2012/05/25/1
- type: WEB
  url: http://lists.fedoraproject.org/pipermail/package-announce/2012-June/081789.html
- type: WEB
  url: 
    https://github.com/dlitz/pycrypto/blob/373ea760f21701b162e8c4912a66928ee30d401a/ChangeLog
- type: ADVISORY
  url: http://secunia.com/advisories/49263
- type: WEB
  url: http://lists.fedoraproject.org/pipermail/package-announce/2012-June/081759.html
- type: WEB
  url: http://lists.fedoraproject.org/pipermail/package-announce/2012-June/081713.html
- type: WEB
  url: http://www.osvdb.org/82279
- type: WEB
  url: http://www.securityfocus.com/bid/53687
- type: WEB
  url: https://hermes.opensuse.org/messages/15083589
- type: ADVISORY
  url: http://www.debian.org/security/2012/dsa-2502
- type: ADVISORY
  url: http://www.mandriva.com/security/advisories?name=MDVSA-2012:117
- type: WEB
  url: https://exchange.xforce.ibmcloud.com/vulnerabilities/75871
- type: ADVISORY
  url: https://github.com/advisories/GHSA-v367-p58w-98h5
aliases:
- CVE-2012-2417
- GHSA-v367-p58w-98h5
modified: "2021-08-27T03:22:16.601238Z"
published: "2012-06-17T03:41:00Z"