{"id":"DEBIAN-CVE-2023-5870","details":"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.","modified":"2026-09-15T09:02:53.570216609Z","published":"2023-12-10T18:15:07.643Z","upstream":["CVE-2023-5870"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2023-5870"}],"affected":[{"package":{"name":"postgresql-15","ecosystem":"Debian:12","purl":"pkg:deb/debian/postgresql-15?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"15.5-0+deb12u1"}]}],"versions":["15.3-0+deb12u1","15.3-1","15.4-0+deb12u1","15.4-1","15.4-2","15.4-3"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-5870.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H"}]}