{
  "schema_version": "1.4.0",
  "id": "GHSA-65rm-h285-5cc5",
  "modified": "2024-11-25T19:24:13Z",
  "published": "2019-08-16T14:02:35Z",
  "aliases": [
    "CVE-2019-12855"
  ],
  "summary": "Improper Certificate Validation in Twisted",
  "details": "In words.protocols.jabber.xmlstream in Twisted through 19.2.1, XMPP support did not verify certificates when used with TLS, allowing an attacker to MITM connections.",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N"
    },
    {
      "type": "CVSS_V4",
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N"
    }
  ],
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "Twisted"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "19.7.0rc1"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-12855"
    },
    {
      "type": "WEB",
      "url": "https://github.com/twisted/twisted/pull/1147"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/twisted/PYSEC-2019-129.yaml"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/twisted/twisted"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PLTZDMFBNFSJMBXYJNGJHENJA4H2TSMZ"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PLTZDMFBNFSJMBXYJNGJHENJA4H2TSMZ"
    },
    {
      "type": "WEB",
      "url": "https://twistedmatrix.com/trac/ticket/9561"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4308-1"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4308-2"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/security-alerts/cpuapr2020.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00013.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00028.html"
    }
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-295"
    ],
    "severity": "CRITICAL",
    "github_reviewed": true,
    "github_reviewed_at": "2019-08-12T15:06:23Z",
    "nvd_published_at": "2019-06-16T12:29:00Z"
  }
}