摘要:
krb5 security update
安全等级: Medium
公告ID: KylinSec-SA-2025-2862
发布日期: 2025年9月12日
关联CVE: CVE-2025-3576
Kerberos is a network authentication protocol. It is designed to provide strong authentication for client/server applications by using secret-key cryptography.
Security Fix(es):
A vulnerability in the MIT Kerberos implementation allows GSSAPI-protected messages using RC4-HMAC-MD5 to be spoofed due to weaknesses in the MD5 checksum design. If RC4 is preferred over stronger encryption types, an attacker could exploit MD5 collisions to forge message integrity codes. This may lead to unauthorized message tampering.(CVE-2025-3576)
| cve名称 | 产品 | 组件 | 是否受影响 |
|---|---|---|---|
| CVE-2025-3576 | KY3.4-5A | krb5 | Fixed |
| 软件名称 | 架构 | 版本号 |
|---|---|---|
| krb5-help | noarch | 1.18.2-19.ky3_4.kb1 |
| krb5 | x86_64 | 1.18.2-19.ky3_4.kb1 |
| krb5-client | x86_64 | 1.18.2-19.ky3_4.kb1 |
| krb5-devel | x86_64 | 1.18.2-19.ky3_4.kb1 |
| krb5-libs | x86_64 | 1.18.2-19.ky3_4.kb1 |
| krb5-server | x86_64 | 1.18.2-19.ky3_4.kb1 |
| krb5 | aarch64 | 1.18.2-19.ky3_4.kb1 |
| krb5-client | aarch64 | 1.18.2-19.ky3_4.kb1 |
| krb5-devel | aarch64 | 1.18.2-19.ky3_4.kb1 |
| krb5-libs | aarch64 | 1.18.2-19.ky3_4.kb1 |
| krb5-server | aarch64 | 1.18.2-19.ky3_4.kb1 |
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
