{"id":"UBUNTU-CVE-2020-21469","details":"An issue was discovered in PostgreSQL 12.2 allows attackers to cause a denial of service via repeatedly sending SIGHUP signals. NOTE: this is disputed by the vendor because untrusted users cannot send SIGHUP signals; they can only be sent by a PostgreSQL superuser, a user with pg_reload_conf access, or a user with sufficient privileges at the OS level (the postgres account or the root account).","modified":"2026-04-22T12:33:13.584843Z","published":"2023-08-22T19:16:00Z","upstream":["CVE-2020-21469"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-21469"},{"type":"REPORT","url":"https://www.postgresql.org/message-id/CAA8ZSMqAHDCgo07hqKoM5XJaoQy6Vv76O7966agez4ffyQktkA%40mail.gmail.com"},{"type":"REPORT","url":"https://www.postgresql.org/about/news/cve-2020-21469-is-not-a-security-vulnerability-2701/"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-21469"}],"affected":[{"package":{"name":"postgresql-12","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/postgresql-12@12.5-0ubuntu0.20.04.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"12.5-0ubuntu0.20.04.1"}]}],"versions":["12.0-1","12.1-1","12.1-2build1","12.2-1","12.2-1ubuntu2","12.2-4","12.4-0ubuntu0.20.04.1"],"ecosystem_specific":{"binaries":[{"binary_name":"libecpg-compat3","binary_version":"12.5-0ubuntu0.20.04.1"},{"binary_name":"libecpg6","binary_version":"12.5-0ubuntu0.20.04.1"},{"binary_name":"libpgtypes3","binary_version":"12.5-0ubuntu0.20.04.1"},{"binary_name":"libpq5","binary_version":"12.5-0ubuntu0.20.04.1"},{"binary_name":"postgresql-12","binary_version":"12.5-0ubuntu0.20.04.1"},{"binary_name":"postgresql-client-12","binary_version":"12.5-0ubuntu0.20.04.1"},{"binary_name":"postgresql-doc-12","binary_version":"12.5-0ubuntu0.20.04.1"},{"binary_name":"postgresql-plperl-12","binary_version":"12.5-0ubuntu0.20.04.1"},{"binary_name":"postgresql-plpython3-12","binary_version":"12.5-0ubuntu0.20.04.1"},{"binary_version":"12.5-0ubuntu0.20.04.1","binary_name":"postgresql-pltcl-12"},{"binary_name":"postgresql-server-dev-12","binary_version":"12.5-0ubuntu0.20.04.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-21469.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}