pysec-2022-160
Vulnerability from pysec
Published
2022-03-03 21:15
Modified
2022-03-10 17:35
Details

Twisted is an event-based framework for internet applications, supporting Python 3.6+. Prior to 22.2.0, Twisted SSH client and server implement is able to accept an infinite amount of data for the peer's SSH version identifier. This ends up with a buffer using all the available memory. The attach is a simple as nc -rv localhost 22 < /dev/zero. A patch is available in version 22.2.0. There are currently no known workarounds.

Impacted products
Name purl
twisted pkg:pypi/twisted
Aliases


To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "twisted",
        "purl": "pkg:pypi/twisted"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "89c395ee794e85a9657b112c4351417850330ef9"
            }
          ],
          "repo": "https://github.com/twisted/twisted",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "21.7.0"
            },
            {
              "fixed": "22.2.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "21.7.0",
        "22.1.0",
        "22.1.0rc1",
        "22.2.0rc1"
      ]
    }
  ],
  "aliases": [
    "CVE-2022-21716",
    "GHSA-rv6r-3f5q-9rgx"
  ],
  "details": "Twisted is an event-based framework for internet applications, supporting Python 3.6+. Prior to 22.2.0, Twisted SSH client and server implement is able to accept an infinite amount of data for the peer\u0027s SSH version identifier. This ends up with a buffer using all the available memory. The attach is a simple as `nc -rv localhost 22 \u003c /dev/zero`. A patch is available in version 22.2.0. There are currently no known workarounds.",
  "id": "PYSEC-2022-160",
  "modified": "2022-03-10T17:35:00.079970Z",
  "published": "2022-03-03T21:15:00Z",
  "references": [
    {
      "type": "FIX",
      "url": "https://github.com/twisted/twisted/commit/89c395ee794e85a9657b112c4351417850330ef9"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/twisted/twisted/security/advisories/GHSA-rv6r-3f5q-9rgx"
    },
    {
      "type": "WEB",
      "url": "https://twistedmatrix.com/trac/ticket/10284"
    },
    {
      "type": "WEB",
      "url": "https://github.com/twisted/twisted/releases/tag/twisted-22.2.0"
    }
  ]
}


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