Security advisory

{
  "id": "99e888f98f26115fc193a19e01c575c2598c7cd546244d3bfe44890210cade05",
  "url": "https://osv.dev/vulnerability/CVE-2020-36657",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-36657",
    "summary": "uptimed before 0.4.6-r1 on Gentoo allows local users (with access to the uptimed user account) to gain root privileges by creating a hard link within the /var/spool/uptimed directory, because there is an unsafe chown -R call.",
    "evidence": "osv:CVE-2020-36657",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2020-36657",
      "aliases": [
        "CVE-2020-36657"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/rpodgorny/uptimed",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "ad909e4dd67e60e4e6f359fa80f1f26e273a06c5"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:uptimed_project:uptimed:*:*:*:*:*:gentoo:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "0.4.6"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v0.4.5",
            "v0.4.4",
            "v0.4.3",
            "v0.4.2",
            "v0.4.1",
            "v0.4.0",
            "v0.3.18",
            "v0.3.17"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-36657.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:29.318706477Z",
      "provider": "osv",
      "references": [
        "https://security.gentoo.org/glsa/202305-14",
        "https://bugs.gentoo.org/630810"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-36657",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 432298,
  "published_at": "2023-01-26T21:15:21.893+00:00"
}