CVE-2023-2455

描述

Row security policies disregard user ID changes after inlining; PostgreSQL could permit incorrect policies to be applied in certain cases where role-specific policies are used and a given query is planned under one role and then executed under other roles. This scenario can happen under security definer functions or when a common user and query is planned initially and then re-used across multiple SET ROLEs. Applying an incorrect policy may permit a user to complete otherwise-forbidden reads and modifications. This affects only databases that have used CREATE POLICY to define a row security policy.

如何修補 CVE-2023-2455

要修補 CVE-2023-2455,請將受影響套件升級到下列已修補版本。

• —升級至 13.11-r0 或更新版本
• —升級至 13.11-r0 或更新版本
• —升級至 14.8-r0 或更新版本
• —升級至 15.3-r0 或更新版本

CVE-2023-2455 正在被利用嗎?

低 — EPSS 為 0.7%,目前沒有觀察到大規模利用活動。

受影響套件(4)

• >= 11.0, < 13.11-r0
• from 0, < 13.11-r0
• from 0, < 14.8-r0
• from 0, < 15.3-r0

CVSS 分數

參考連結(1)

• ADVISORYsecurity.alpinelinux.org/vuln/CVE-2023-2455