vulnerability
FreeBSD: VID-b471130b-fb86-11eb-87db-6cc21735f730 (CVE-2021-3677): PostgreSQL server -- Memory disclosure in certain queries
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:L/Au:S/C:P/I:N/A:N) | Aug 12, 2021 | Nov 4, 2022 | Mar 25, 2026 |
Severity
4
CVSS
(AV:N/AC:L/Au:S/C:P/I:N/A:N)
Published
Aug 12, 2021
Added
Nov 4, 2022
Modified
Mar 25, 2026
Description
The PostgreSQL Project reports: A purpose-crafted query can read arbitrary bytes of server memory. In the default configuration, any authenticated database user can complete this attack at will. The attack does not require the ability to create objects. If server settings include max_worker_processes=0, the known versions of this attack are infeasible. However, undiscovered variants of the attack may be independent of that setting.
Solutions
freebsd-upgrade-package-postgresql13-serverfreebsd-upgrade-package-postgresql12-serverfreebsd-upgrade-package-postgresql11-server
Rapid7 Labs
2026 Global Threat Landscape Report
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