1. 漏洞描述

PAM (Pluggable Authentication Modules) is a system of libraries that handle the authentication tasks of applications (services) on the system.

Security Fix(es):

A vulnerability was found in Linux-PAM up to 1.7.0 and classified as critical.Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.Impacted is confidentiality, integrity, and availability.Upgrading to version 1.7.1 eliminates this vulnerability.(CVE-2025-6020)

2. 影响范围

3. 影响组件

4. 修复版本

5. 修复方法

方法一：下载安装包进行升级安装
1、通过下载链接下载需要升级的升级包保存，如 xxx.rpm
2、通过rpm命令升级，如 rpm -Uvh xxx.rpm

方法二：通过软件源进行升级安装
1、保持能够连接上互联网
2、通过yum命令升级指定的包，如 yum install 包名

6. 下载链接

KY3.4-5A:

x86_64:

     pam-help   

     pam   

     pam-devel   

aarch64:

     pam-help   

     pam   

     pam-devel