Vulnerability: Denial of Service (DoS) Attack via pg_cancel_backend Role in PostgreSQL

CVE-2023-5870 · MEDIUM Severity

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H

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.

Learn more about our Cis Benchmark Audit For Microsoft Sql Server.