PYSEC-2017-8

Vulnerability from pysec - Published: 2017-03-27 17:59 - Updated: 2021-07-05 00:01
VLAI?
Details

HKDF in cryptography before 1.5.2 returns an empty byte-string if used with a length less than algorithm.digest_size.

Impacted products
Name purl
cryptography pkg:pypi/cryptography
Aliases
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "cryptography",
        "purl": "pkg:pypi/cryptography"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "b924696b2e8731f39696584d12cceeb3aeb2d874"
            }
          ],
          "repo": "https://github.com/pyca/cryptography",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.5.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.1",
        "0.2",
        "0.2.1",
        "0.2.2",
        "0.3",
        "0.4",
        "0.5",
        "0.5.1",
        "0.5.2",
        "0.5.3",
        "0.5.4",
        "0.6",
        "0.6.1",
        "0.7",
        "0.7.1",
        "0.7.2",
        "0.8",
        "0.8.1",
        "0.8.2",
        "0.9",
        "0.9.1",
        "0.9.2",
        "0.9.3",
        "1.0",
        "1.0.1",
        "1.0.2",
        "1.1",
        "1.1.1",
        "1.1.2",
        "1.2",
        "1.2.1",
        "1.2.2",
        "1.2.3",
        "1.3",
        "1.3.1",
        "1.3.2",
        "1.3.3",
        "1.3.4",
        "1.4",
        "1.5",
        "1.5.1",
        "1.5.2"
      ]
    }
  ],
  "aliases": [
    "CVE-2016-9243",
    "GHSA-q3cj-2r34-2cwc"
  ],
  "details": "HKDF in cryptography before 1.5.2 returns an empty byte-string if used with a length less than algorithm.digest_size.",
  "id": "PYSEC-2017-8",
  "modified": "2021-07-05T00:01:17.464237Z",
  "published": "2017-03-27T17:59:00Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WQ5G7KHKZC4SI23JE7277KZXM57GEQKT/"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U23KDR2M2N7W2ZSREG63BVW7D4VC6CIZ/"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5R2ZOBMPWDFFHUZ6QOZZY36A6H5CGJXL/"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/pyca/cryptography/issues/3211"
    },
    {
      "type": "FIX",
      "url": "https://github.com/pyca/cryptography/commit/b924696b2e8731f39696584d12cceeb3aeb2d874"
    },
    {
      "type": "WEB",
      "url": "https://cryptography.io/en/latest/changelog"
    },
    {
      "type": "ADVISORY",
      "url": "http://www.ubuntu.com/usn/USN-3138-1"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/94216"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2016/11/09/2"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-q3cj-2r34-2cwc"
    }
  ]
}


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