postgresql: Role pg_signal_backend can signal certain superuser processes.

A flaw was found in PostgreSQL involving the pgcancelbackend 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...

postgresql: Role pg_signal_backend can signal certain superuser processes.

A flaw was found in PostgreSQL involving the pgcancelbackend 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...

postgresql-server -- Role pg_cancel_backend can signal certain superuser processes

PostgreSQL Project reports: Documentation says the pgcancelbackend role cannot signal "a backend owned by a superuser". On the contrary, it can signal background workers, including the logical replication launcher. It can signal autovacuum workers and the autovacuum launcher. Signaling autovacuum...

PT-2023-6889 · Unknown +11 · Postgresql +10

Name of the Vulnerable Software and Affected Versions: PostgreSQL affected versions not specified Description: The issue is related to the pg signal backend role in PostgreSQL, which allows signaling certain superuser processes. This can be exploited by a remote high-privileged user to launch a...