CVE-2023-5870

MEDIUM4.4EPSS 0.62%

Postgresql: role pg_signal_backend can signal certain superuser processes.

發布日:2023/12/10修改日:2026/4/28

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.

受影響套件(6)

Alpine/postgresql14from 0, < 14.10-r0
Alpine/postgresql15from 0, < 15.5-r0
Alpine/postgresql16from 0, < 16.1-r0
Bitnami/postgresql>= 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
Debian/postgresql-13from 0, < 13.13-0+deb11u1
Debian/postgresql-15from 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

描述

受影響套件(6)

CVSS 分數

參考連結(30)