CVE-2023-5870
Postgresql: role pg_signal_backend can signal certain superuser processes.
4.4
MEDIUM
CVSS 3.1
EPSS 2.6%
描述
A flaw was found in PostgreSQL involving the pg_cancel_backend 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 affect that specific background worker only. This issue may allow a remote high privileged user to launch a denial of service (DoS) attack.
如何修補 CVE-2023-5870
要修補 CVE-2023-5870,請將受影響套件升級到下列已修補版本。
- —升級至 14.10-r0 或更新版本
- —升級至 15.5-r0 或更新版本
- —升級至 16.1-r0 或更新版本
- —升級至 11.22.0 或更新版本
- —升級至 13.13-0+deb11u1 或更新版本
- —升級至 15.5-0+deb12u1 或更新版本
CVE-2023-5870 正在被利用嗎?
低 — EPSS 為 2.6%,目前沒有觀察到大規模利用活動。
受影響套件(6)
- from 0, < 14.10-r0
- from 0, < 15.5-r0
- from 0, < 16.1-r0
- >= 11.0.0, < 11.22.0, >= 12.0.0, < 12.17.0, >= 13.0.0, < 13.13.0, >= 14.0.0, < 14.10.0, >= 15.0.0, < 15.5.0, >= 16.0.0, < 16.0.1
- from 0, < 13.13-0+deb11u1
- from 0, < 15.5-0+deb12u1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.4 | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H |