pysec-2013-29
Vulnerability from pysec
Published
2013-10-26 17:55
Modified
2021-08-27 03:22
Details

The Crypto.Random.atfork function in PyCrypto before 2.6.1 does not properly reseed the pseudo-random number generator (PRNG) before allowing a child process to access it, which makes it easier for context-dependent attackers to obtain sensitive information by leveraging a race condition in which a child process is created and accesses the PRNG within the same rate-limit period as another process.

Impacted products
Name purl
pycrypto pkg:pypi/pycrypto
Aliases



{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "pycrypto",
        "purl": "pkg:pypi/pycrypto"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "19dcf7b15d61b7dc1a125a367151de40df6ef175"
            }
          ],
          "repo": "https://github.com/dlitz/pycrypto",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.6.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "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",
        "2.6"
      ]
    }
  ],
  "aliases": [
    "CVE-2013-1445"
  ],
  "details": "The Crypto.Random.atfork function in PyCrypto before 2.6.1 does not properly reseed the pseudo-random number generator (PRNG) before allowing a child process to access it, which makes it easier for context-dependent attackers to obtain sensitive information by leveraging a race condition in which a child process is created and accesses the PRNG within the same rate-limit period as another process.",
  "id": "PYSEC-2013-29",
  "modified": "2021-08-27T03:22:16.634811Z",
  "published": "2013-10-26T17:55:00Z",
  "references": [
    {
      "type": "FIX",
      "url": "https://github.com/dlitz/pycrypto/commit/19dcf7b15d61b7dc1a125a367151de40df6ef175"
    },
    {
      "type": "ADVISORY",
      "url": "http://www.debian.org/security/2013/dsa-2781"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2013/10/17/3"
    }
  ]
}


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