Security advisory

{
  "id": "79a02a0a395030fb0ac7ad763e48c89a30c5a037def171b89704acfaccedd591",
  "url": "https://osv.dev/vulnerability/CVE-2019-18874",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-18874",
    "summary": "psutil (aka python-psutil) through 5.6.5 can have a double free. This occurs because of refcount mishandling within a while or for loop that converts system data into a Python object.",
    "evidence": "osv:CVE-2019-18874",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2019-18874",
      "aliases": [
        "CVE-2019-18874",
        "GHSA-qfc5-mcwq-26q8",
        "PYSEC-2019-41"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/giampaolo/psutil",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "b17eda56735b1e93a907355b4436f118d1333a37"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:psutil_project:psutil:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "5.6.5"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v5.6.5",
            "release-5.6.5",
            "v5.6.4",
            "release-5.6.4",
            "v5.6.2",
            "release-5.6.2",
            "v5.6.1",
            "release-5.6.1",
            "v5.6.0",
            "release-5.6.0",
            "v5.5.1",
            "release-5.5.1",
            "v5.5.0",
            "release-5.5.0",
            "v5.4.8",
            "release-5.4.8",
            "v5.4.7",
            "release-5.4.7",
            "v5.4.6",
            "release-5.4.6",
            "v5.4.5",
            "release-5.4.5",
            "v5.4.4",
            "release-5.4.4",
            "v5.4.3",
            "release-5.4.3",
            "v5.4.2",
            "release-5.4.2",
            "v5.4.1",
            "release-5.4.1",
            "v5.4.0",
            "release-5.4.0",
            "v5.3.1",
            "release-5.3.1",
            "v5.3.0",
            "release-5.3.0",
            "v5.2.2",
            "release-5.2.2",
            "v5.2.1",
            "release-5.2.1",
            "v5.2.0",
            "release-5.2.0",
            "v5.1.3",
            "release-5.1.3",
            "v5.1.2",
            "release-5.1.2",
            "v5.1.1",
            "release-5.1.1",
            "v5.1.0",
            "release-5.1.0",
            "v5.0.1",
            "release-5.0.1",
            "v5.0.0",
            "release-5.0.0",
            "v4.4.2",
            "release-4.4.2",
            "v4.4.1",
            "release-4.4.1",
            "v4.4.0",
            "release-4.4.0",
            "v4.3.1",
            "release-4.3.1",
            "v4.3.0",
            "release-4.3.0",
            "v4.2.0",
            "release-4.2.0",
            "v4.1.0",
            "release-4.1.0",
            "v4.0.0",
            "release-4.0.0",
            "v3.4.2",
            "release-3.4.2",
            "v3.4.1",
            "release-3.4.1",
            "v3.3.0",
            "release-3.3.0",
            "v3.2.2",
            "release-3.2.2",
            "v3.2.1",
            "release-3.2.1",
            "v3.2.0",
            "release-3.2.0",
            "v3.1.1",
            "release-3.1.1",
            "v3.1.0",
            "release-3.1.0",
            "v3.0.1",
            "release-3.0.1",
            "v3.0.0",
            "release-3.0.0",
            "v2.1.3",
            "release-2.1.3",
            "v2.1.2",
            "release-2.1.2",
            "v2.1.1",
            "release-2.1.1",
            "v2.1.0",
            "release-2.1.0",
            "v2.0.0",
            "release-2.0.0",
            "v1.0.1",
            "release-1.0.1",
            "v1.0.0",
            "release-1.0.0",
            "v0.7.1",
            "release-0.7.1",
            "v0.7.0",
            "release-0.7.0",
            "v0.6.1",
            "release-0.6.1",
            "v0.6.0",
            "release-0.6.0",
            "v0.5.1",
            "release-0.5.1",
            "v0.5.0",
            "release-0.5.0",
            "v0.4.1",
            "release-0.4.1",
            "v0.4.0",
            "release-0.4.0",
            "v0.3.0",
            "release-0.3.0",
            "v0.2.1",
            "release-0.2.1",
            "v0.2.0",
            "release-0.2.0",
            "v0.1.3",
            "release-0.1.3",
            "v0.1.2",
            "release-0.1.2",
            "v0.1.1",
            "release-0.1.1",
            "v0.1.0",
            "release-0.1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-18874.json"
          }
        }
      ],
      "modified": "2026-10-20T10:52:32.085978463Z",
      "provider": "osv",
      "references": [
        "https://lists.debian.org/debian-lts-announce/2019/11/msg00018.html",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2P7QI7MOTZTFXQYU23CP3RAWXCERMOAS/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OLETTJYZL2SMBUI4Q2NGBMGPDPP54SRG/",
        "https://usn.ubuntu.com/4204-1/",
        "https://github.com/giampaolo/psutil/pull/1616"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2019-18874",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 383677,
  "published_at": "2019-11-12T02:15:10.343+00:00"
}