postgresql/contrib/amcheck/sql
Noah Misch a117cebd63 Make relation-enumerating operations be security-restricted operations.
When a feature enumerates relations and runs functions associated with
all found relations, the feature's user shall not need to trust every
user having permission to create objects.  BRIN-specific functionality
in autovacuum neglected to account for this, as did pg_amcheck and
CLUSTER.  An attacker having permission to create non-temp objects in at
least one schema could execute arbitrary SQL functions under the
identity of the bootstrap superuser.  CREATE INDEX (not a
relation-enumerating operation) and REINDEX protected themselves too
late.  This change extends to the non-enumerating amcheck interface.
Back-patch to v10 (all supported versions).

Sergey Shinderuk, reviewed (in earlier versions) by Alexander Lakhin.
Reported by Alexander Lakhin.

Security: CVE-2022-1552
2022-05-09 08:35:08 -07:00
..
check.sql Add amcheck extension to contrib. 2017-03-09 16:33:02 -08:00
check_btree.sql Make relation-enumerating operations be security-restricted operations. 2022-05-09 08:35:08 -07:00
check_heap.sql Disable vacuum page skipping in selected test cases. 2021-01-20 11:49:29 -05:00