摘要:
varnish security update
安全等级: High
公告ID: KylinSec-SA-2025-2869
发布日期: 2025年9月24日
关联CVE: CVE-2025-8671
This is Varnish Cache, a web application accelerator also known as a caching HTTP reverse proxy. You install it in front of any server that speaks HTTP and configure it to cache the contents. Varnish Cache is really, really fast. It typically speeds up delivery with a factor of 300 - 1000x, depending on your architecture.
Security Fix(es):
A mismatch caused by client-triggered server-sent stream resets between HTTP/2 specifications and the internal architectures of some HTTP/2 implementations may result in excessive server resource consumption leading to denial-of-service (DoS). By opening streams and then rapidly triggering the server to reset them—using malformed frames or flow control errors—an attacker can exploit incorrect stream accounting. Streams reset by the server are considered closed at the protocol level, even though backend processing continues. This allows a client to cause the server to handle an unbounded number of concurrent streams on a single connection. This CVE will be updated as affected product details are released.(CVE-2025-8671)
| cve名称 | 产品 | 组件 | 是否受影响 |
|---|---|---|---|
| CVE-2025-8671 | KY3.5.3 | lighttpd | Fixed |
| CVE-2025-8671 | KY3.5.2 | lighttpd | Fixed |
| 软件名称 | 架构 | 版本号 |
|---|---|---|
| varnish-help | noarch | 7.4.3-4.ky3_5 |
| varnish | x86_64 | 7.4.3-4.ky3_5 |
| varnish-devel | x86_64 | 7.4.3-4.ky3_5 |
| varnish | aarch64 | 7.4.3-4.ky3_5 |
| varnish-devel | aarch64 | 7.4.3-4.ky3_5 |
| 软件名称 | 架构 | 版本号 |
|---|---|---|
| varnish-help | noarch | 7.4.3-4.ky3_5 |
| varnish | x86_64 | 7.4.3-4.ky3_5 |
| varnish-devel | x86_64 | 7.4.3-4.ky3_5 |
| varnish | aarch64 | 7.4.3-4.ky3_5 |
| varnish-devel | aarch64 | 7.4.3-4.ky3_5 |
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
