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| author | Noah Misch <noah@leadboat.com> | 2022-05-09 08:35:08 -0700 |
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| committer | Noah Misch <noah@leadboat.com> | 2022-05-09 08:35:12 -0700 |
| commit | 7f098f7b53edfe8340c6e031bf497308a2e65e2e (patch) | |
| tree | 3a4aac76f5669b94faee6741819e3ae6f56393ae /src/backend/tcop/postgres.c | |
| parent | d387588601cdf303a28e71c2ec6f337a3b08ab64 (diff) | |
| download | postgresql-7f098f7b53edfe8340c6e031bf497308a2e65e2e.tar.gz postgresql-7f098f7b53edfe8340c6e031bf497308a2e65e2e.zip | |
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
Diffstat (limited to 'src/backend/tcop/postgres.c')
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