postgresql-15 — security advisory

{
  "id": "f79382a67aa2733fd85d3b6f78e21ae3869ff280bb443ef42c3f8f1d13028418",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2023-5870",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2023-5870",
    "summary": "A flaw was found in PostgreSQL involving the pg_cancel_backend role that signals background workers, including the logical replication launcher, autovacuum workers, and the autovacuum launcher. Successful exploitation requires a non-core extension with a less-resilient background worker and would affect that specific background worker only. This issue may allow a remote high privileged user to launch a denial of service (DoS) attack.",
    "evidence": "osv:DEBIAN-CVE-2023-5870",
    "products": [
      {
        "name": {
          "value": "postgresql-15",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "15.5-0+deb12u1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "15.3-0+deb12u1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "15.3-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "15.4-0+deb12u1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "15.4-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "15.4-2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "15.4-3",
            "evidence": "/affected/0/versions"
          }
        ]
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "DEBIAN-CVE-2023-5870",
      "aliases": [
        "DEBIAN-CVE-2023-5870"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "15.5-0+deb12u1"
                }
              ]
            }
          ],
          "package": {
            "name": "postgresql-15",
            "purl": "pkg:deb/debian/postgresql-15?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "versions": [
            "15.3-0+deb12u1",
            "15.3-1",
            "15.4-0+deb12u1",
            "15.4-1",
            "15.4-2",
            "15.4-3"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-5870.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-26T18:03:09.917904577Z",
      "provider": "osv",
      "upstream": [
        "CVE-2023-5870"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2023-5870"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2023-5870",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 457970,
  "published_at": "2023-12-10T18:15:07.643+00:00"
}