CVE-2023-5869
While modifying certain SQL array values, missing overflow checks let authenticated database users write arbitrary bytes to a memory area that facilitates arbitrary code execution. Missing overflow checks also let authenticated database users read a wide area of server memory. The CVE-2021-32027 fix covered some attacks of this description, but it missed others. The PostgreSQL project thanks Pedro Gallegos for reporting this problem.
Version Information
| Affected branch | Introduced | Fixed In | Fix Published |
|---|---|---|---|
| 11 | — | 11.22 | 2023-11-09 |
| 12 | — | 12.17 | 2023-11-09 |
| 13 | — | 13.13 | 2023-11-09 |
| 14 | — | 14.10 | 2023-11-09 |
| 15 | — | 15.5 | 2023-11-09 |
| 16 | — | 16.1 | 2023-11-09 |
CVSS 3.0
| Overall Score | 8.8 |
|---|---|
| Component | core server |
| Vector | AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
First published: 2023-11-09
Historical source observations
These dated records preserve the original source claims separately from the reviewed fix list.
center · 2026-10-03 12:08:35.169032+08
- PostgreSQL 16 · Original minor coordinate: 1
- PostgreSQL 15 · Original minor coordinate: 5
- PostgreSQL 14 · Original minor coordinate: 10
pgweb · 2026-10-03 12:08:55.967155+08
- PostgreSQL 16 · Original minor coordinate: 1
- PostgreSQL 15 · Original minor coordinate: 5
- PostgreSQL 14 · Original minor coordinate: 10