CVE-2012-2417 (GCVE-0-2012-2417)

Vulnerability from cvelistv5 – Published: 2012-06-17 01:00 – Updated: 2024-08-06 19:34
VLAI
Summary
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.
Severity
No CVSS data available.
CWE
  • n/a
Assigner
References
Date Public
2012-04-18 00:00
Show details on NVD website
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      "published": "2012-06-17T03:41:40.763",
      "references": "[{\"url\": \"http://lists.fedoraproject.org/pipermail/package-announce/2012-June/081713.html\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://lists.fedoraproject.org/pipermail/package-announce/2012-June/081759.html\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://lists.fedoraproject.org/pipermail/package-announce/2012-June/081789.html\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://secunia.com/advisories/49263\", \"source\": \"cve@mitre.org\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"http://www.debian.org/security/2012/dsa-2502\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://www.mandriva.com/security/advisories?name=MDVSA-2012:117\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://www.openwall.com/lists/oss-security/2012/05/25/1\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://www.osvdb.org/82279\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://www.securityfocus.com/bid/53687\", \"source\": \"cve@mitre.org\"}, {\"url\": \"https://bugs.launchpad.net/pycrypto/+bug/985164\", \"source\": \"cve@mitre.org\"}, {\"url\": \"https://exchange.xforce.ibmcloud.com/vulnerabilities/75871\", \"source\": \"cve@mitre.org\"}, {\"url\": \"https://github.com/Legrandin/pycrypto/commit/9f912f13df99ad3421eff360d6a62d7dbec755c2\", \"source\": \"cve@mitre.org\", \"tags\": [\"Exploit\", \"Patch\"]}, {\"url\": \"https://github.com/dlitz/pycrypto/blob/373ea760f21701b162e8c4912a66928ee30d401a/ChangeLog\", \"source\": \"cve@mitre.org\"}, {\"url\": \"https://hermes.opensuse.org/messages/15083589\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://lists.fedoraproject.org/pipermail/package-announce/2012-June/081713.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://lists.fedoraproject.org/pipermail/package-announce/2012-June/081759.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://lists.fedoraproject.org/pipermail/package-announce/2012-June/081789.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://secunia.com/advisories/49263\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"http://www.debian.org/security/2012/dsa-2502\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.mandriva.com/security/advisories?name=MDVSA-2012:117\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.openwall.com/lists/oss-security/2012/05/25/1\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.osvdb.org/82279\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.securityfocus.com/bid/53687\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://bugs.launchpad.net/pycrypto/+bug/985164\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://exchange.xforce.ibmcloud.com/vulnerabilities/75871\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://github.com/Legrandin/pycrypto/commit/9f912f13df99ad3421eff360d6a62d7dbec755c2\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Exploit\", \"Patch\"]}, {\"url\": \"https://github.com/dlitz/pycrypto/blob/373ea760f21701b162e8c4912a66928ee30d401a/ChangeLog\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://hermes.opensuse.org/messages/15083589\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}]",
      "sourceIdentifier": "cve@mitre.org",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-310\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2012-2417\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2012-06-17T03:41:40.763\",\"lastModified\":\"2026-04-29T01:13:23.040\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"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.\"},{\"lang\":\"es\",\"value\":\"Pycrypto anterior a v2.6 no genera adecuadamente los n\u00fameros primos cuando se utiliza un esquema basado en ElGamal para generar una clave, lo que reduce el espacio de la firma o el espacio de claves p\u00fablica y hace m\u00e1s f\u00e1cil para los atacantes para llevar a cabo ataques de fuerza bruta para obtener la clave 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  }
}


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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.