BREW-DSTACK-CVE-2018-7750 (GHSA-232R-66CG-79PX)

Vulnerability from osv_homebrew – Published: 2026-08-13 16:43 – Updated: 2026-09-09 23:52 – Source website
VLAI
Summary
Paramiko not properly checking authentication before processing other requests
Details

transport.py in the SSH server implementation of Paramiko before 1.17.6, 1.18.x before 1.18.5, 2.0.x before 2.0.8, 2.1.x before 2.1.5, 2.2.x before 2.2.3, 2.3.x before 2.3.2, and 2.4.x before 2.4.1 does not properly check whether authentication is completed before processing other requests, as demonstrated by channel-open. A customized SSH client can simply skip the authentication step.

Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.3 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "fix": "bump",
        "range_state": "fixed",
        "resource": "paramiko",
        "resource_purl": "pkg:pypi/paramiko@5.0.0",
        "upstream_fixed_in": "2.4.1"
      },
      "package": {
        "ecosystem": "Homebrew",
        "name": "dstack",
        "purl": "pkg:brew/dstack"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.21.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "confidence": "high",
    "source": "matched",
    "strategy": "registry",
    "upstream_evidence": [
      {
        "ecosystem": "PyPI",
        "key": "pkg:pypi/paramiko@5.0.0",
        "name": "paramiko",
        "resource": "paramiko",
        "strategy": "registry",
        "subject_version": "5.0.0"
      }
    ]
  },
  "details": "transport.py in the SSH server implementation of Paramiko before 1.17.6, 1.18.x before 1.18.5, 2.0.x before 2.0.8, 2.1.x before 2.1.5, 2.2.x before 2.2.3, 2.3.x before 2.3.2, and 2.4.x before 2.4.1 does not properly check whether authentication is completed before processing other requests, as demonstrated by channel-open. A customized SSH client can simply skip the authentication step.",
  "id": "BREW-dstack-CVE-2018-7750",
  "modified": "2026-09-09T23:52:28Z",
  "published": "2026-08-13T16:43:57Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-7750"
    },
    {
      "type": "WEB",
      "url": "https://github.com/paramiko/paramiko/issues/1175"
    },
    {
      "type": "WEB",
      "url": "https://github.com/paramiko/paramiko/commit/fa29bd8446c8eab237f5187d28787727b4610516"
    },
    {
      "type": "WEB",
      "url": "https://github.com/paramiko/paramiko/commit/e9dfd854bdaf8af15d7834f7502a0451d217bb8c"
    },
    {
      "type": "WEB",
      "url": "https://www.exploit-db.com/exploits/45712"
    },
    {
      "type": "WEB",
      "url": "https://web.archive.org/web/20190831123128/http://www.securityfocus.com/bid/103713"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3603-2"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3603-1"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2021/12/msg00025.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2018/10/msg00018.html"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/paramiko/PYSEC-2018-19.yaml"
    },
    {
      "type": "WEB",
      "url": "https://github.com/paramiko/paramiko/blob/master/sites/www/changelog.rst"
    },
    {
      "type": "WEB",
      "url": "https://github.com/paramiko/paramiko/blob/e861c7697622774071ce73b46ffe8817eacdedfa/sites/www/changelog.rst?plain=1#L759-L763"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/paramiko/paramiko"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-232r-66cg-79px"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2018:1972"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2018:1525"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2018:1328"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2018:1274"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2018:1213"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2018:1125"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2018:1124"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2018:0646"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2018:0591"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/103713"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Paramiko not properly checking authentication before processing other requests",
  "upstream": [
    "GHSA-232r-66cg-79px",
    "CVE-2018-7750",
    "PYSEC-2018-19"
  ]
}



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