Security advisory

{
  "id": "ca03aeb956dc53939bc6581c15452c024c84d2e226483bbb19ff4903a673a959",
  "url": "https://osv.dev/vulnerability/CVE-2020-25654",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-25654",
    "summary": "An ACL bypass flaw was found in pacemaker. An attacker having a local account on the cluster and in the haclient group could use IPC communication with various daemons directly to perform certain tasks that they would be prevented by ACLs from doing if they went through the configuration.",
    "evidence": "osv:CVE-2020-25654",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2020-25654",
      "aliases": [
        "CVE-2020-25654"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/clusterlabs/pacemaker",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "28dd98fada1e39a9219df0c115d978a0f20352a8"
                },
                {
                  "introduced": "8cf3fe749e5ba7971154f66a799dda6cb92c8aad"
                },
                {
                  "fixed": "4b1f869f0f64ef0d248b6aa4781d38ecccf83318"
                },
                {
                  "introduced": "8786586619664814a48eeee1e2ef8d586ed1224a"
                },
                {
                  "last_affected": "8786586619664814a48eeee1e2ef8d586ed1224a"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:clusterlabs:pacemaker:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.1.23"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:clusterlabs:pacemaker:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.0.0"
                      },
                      {
                        "fixed": "2.0.3"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:clusterlabs:pacemaker:2.0.5:rc1:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.0.5-rc1"
                      },
                      {
                        "last_affected": "2.0.5-rc1"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.0.5-rc1",
            "Pacemaker-2.0.5-rc1",
            "Pacemaker-1.1.23-rc1",
            "Pacemaker-1.1.22",
            "Pacemaker-2.0.3-rc3",
            "Pacemaker-1.1.22-rc2",
            "Pacemaker-2.0.3-rc2",
            "Pacemaker-1.1.22-rc1",
            "Pacemaker-2.0.3-rc1",
            "Pacemaker-2.0.2",
            "Pacemaker-1.1.21",
            "Pacemaker-1.1.21-rc1",
            "Pacemaker-2.0.2-rc3",
            "Pacemaker-2.0.2-rc2",
            "Pacemaker-2.0.2-rc1",
            "Pacemaker-2.0.1",
            "Pacemaker-1.1.20",
            "Pacemaker-1.1.20-rc3",
            "Pacemaker-2.0.1-rc5",
            "Pacemaker-1.1.20-rc2",
            "Pacemaker-2.0.1-rc4",
            "Pacemaker-1.1.20-rc1",
            "Pacemaker-2.0.1-rc3",
            "Pacemaker-2.0.1-rc2",
            "Pacemaker-2.0.1-rc1",
            "Pacemaker-2.0.0",
            "Pacemaker-1.1.19",
            "Pacemaker-1.1.19-rc1",
            "Pacemaker-1.1.18",
            "Pacemaker-1.1.18-rc4",
            "Pacemaker-1.1.18-rc3",
            "Pacemaker-1.1.18-rc2",
            "Pacemaker-1.1.18-rc1",
            "Pacemaker-1.1.17",
            "Pacemaker-1.1.17-rc4",
            "Pacemaker-1.1.17-rc3",
            "Pacemaker-1.1.17-rc2",
            "Pacemaker-1.1.17-rc1",
            "Pacemaker-1.1.14-rc4",
            "Pacemaker-1.1.13-rc1",
            "Pacemaker-1.1.11-rc3",
            "Pacemaker-1.1.11-rc1",
            "Pacemaker-1.1.10",
            "Pacemaker-1.1.10-rc7",
            "Pacemaker-1.1.10-rc6",
            "Pacemaker-1.1.10-rc5",
            "Pacemaker-1.1.10-rc4",
            "Pacemaker-1.1.10-rc3",
            "Pacemaker-1.1.10-rc2",
            "Pacemaker-1.1.10-rc1",
            "Pacemaker-1.1.9",
            "RHEL6.4",
            "Pacemaker-1.1.8",
            "Pacemaker-1.1.7",
            "RHEL6.3",
            "Pacemaker-1.1.6.1",
            "Pacemaker-1.1.6",
            "Pacemaker-0.6.5",
            "Pacemaker-0.6.3",
            "Pacemaker-0.6.2",
            "Pacemaker-0.6.1",
            "Pacemaker-0.6.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-25654.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:51.281508089Z",
      "provider": "osv",
      "references": [
        "https://lists.clusterlabs.org/pipermail/users/2020-October/027840.html",
        "https://lists.debian.org/debian-lts-announce/2021/01/msg00007.html",
        "https://seclists.org/oss-sec/2020/q4/83",
        "https://security.gentoo.org/glsa/202309-09",
        "https://bugzilla.redhat.com/show_bug.cgi?id=1888191"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "9.0"
                  },
                  {
                    "last_affected": "9.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2020-25654",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 437447,
  "published_at": "2020-11-24T20:15:11.79+00:00"
}