ubuntu-cve-2023-32559
Vulnerability from osv_ubuntu
Published
2023-08-24 02:15
Modified
2026-04-22 07:45
Summary
Details

A privilege escalation vulnerability exists in the experimental policy mechanism in all active release lines: 16.x, 18.x and, 20.x. The use of the deprecated API process.binding() can bypass the policy mechanism by requiring internal modules and eventually take advantage of process.binding('spawn_sync') run arbitrary code, outside of the limits defined in a policy.json file. Please note that at the time this CVE was issued, the policy is an experimental feature of Node.js.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
7.5 (High)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libnode72",
            "binary_version": "12.22.9~dfsg-1ubuntu3.6"
          },
          {
            "binary_name": "nodejs",
            "binary_version": "12.22.9~dfsg-1ubuntu3.6"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "nodejs",
        "purl": "pkg:deb/ubuntu/nodejs@12.22.9~dfsg-1ubuntu3.6?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "12.22.9~dfsg-1ubuntu3.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "12.22.5~dfsg-5ubuntu1",
        "12.22.7~dfsg-2ubuntu1",
        "12.22.7~dfsg-2ubuntu3",
        "12.22.9~dfsg-1ubuntu2",
        "12.22.9~dfsg-1ubuntu3",
        "12.22.9~dfsg-1ubuntu3.1",
        "12.22.9~dfsg-1ubuntu3.2",
        "12.22.9~dfsg-1ubuntu3.3",
        "12.22.9~dfsg-1ubuntu3.4",
        "12.22.9~dfsg-1ubuntu3.5"
      ]
    }
  ],
  "aliases": [],
  "details": "A privilege escalation vulnerability exists in the experimental policy mechanism in all active release lines: 16.x, 18.x and, 20.x. The use of the deprecated API `process.binding()` can bypass the policy mechanism by requiring internal modules and eventually take advantage of `process.binding(\u0027spawn_sync\u0027)` run arbitrary code, outside of the limits defined in a `policy.json` file. Please note that at the time this CVE was issued, the policy is an experimental feature of Node.js.",
  "id": "UBUNTU-CVE-2023-32559",
  "modified": "2026-04-22T07:45:21Z",
  "published": "2023-08-24T02:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-32559"
    },
    {
      "type": "REPORT",
      "url": "https://nodejs.org/en/blog/vulnerability/august-2023-security-releases#permissions-policies-can-be-bypassed-via-processbinding-mediumcve-2023-32559"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/nodejs/node/commit/d4570fae358693b8f7fec05294b9bb92a966226d"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/nodejs/node/commit/4aa0eff787c14f14a239cf2f44bf751a0151e3eb"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2023-32559"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-6822-1"
    }
  ],
  "related": [
    "USN-6822-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2023-32559"
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.