1. 漏洞描述:

Haxxcurl是瑞典Haxx公司的一套利用URL语法在命令行下工作的文件传输工具。该工具支持文件上传和下载，并包含一个用于程序开发的libcurl（客户端URL传输库）。Haxxcurl7.20.0版本至7.71.0之前版本中存在安全漏洞。攻击者可利用该漏洞覆盖本地文件。

2. 解决方法

使用阿里云或者腾讯云的仓库,具体方法其他文章有说明

sudo yum update -y curl libcurl

3. 修复过程

# sudo yum update -y curl libcurl
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
Resolving Dependencies
--> Running transaction check
---> Package curl.x86_64 0:7.29.0-57.el7 will be updated
---> Package curl.x86_64 0:7.29.0-59.el7_9.1 will be an update
---> Package libcurl.x86_64 0:7.29.0-57.el7 will be updated
---> Package libcurl.x86_64 0:7.29.0-59.el7_9.1 will be an update
--> Finished Dependency Resolution

Dependencies Resolved

===========================================================================================================================================================================
 Package                               Arch                                 Version                                            Repository                             Size
===========================================================================================================================================================================
Updating:
 curl                                  x86_64                               7.29.0-59.el7_9.1                                  updates                               271 k
 libcurl                               x86_64                               7.29.0-59.el7_9.1                                  updates                               223 k

Transaction Summary
===========================================================================================================================================================================
Upgrade  2 Packages

Total download size: 494 k
Downloading packages:
Delta RPMs disabled because /usr/bin/applydeltarpm not installed.
(1/2): libcurl-7.29.0-59.el7_9.1.x86_64.rpm                                                                                                         | 223 kB  00:00:00     
(2/2): curl-7.29.0-59.el7_9.1.x86_64.rpm                                                                                                            | 271 kB  00:00:00     
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total                                                                                                                                      1.6 MB/s | 494 kB  00:00:00     
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  Updating   : libcurl-7.29.0-59.el7_9.1.x86_64                                                                                                                        1/4 
  Updating   : curl-7.29.0-59.el7_9.1.x86_64                                                                                                                           2/4 
  Cleanup    : curl-7.29.0-57.el7.x86_64                                                                                                                               3/4 
  Cleanup    : libcurl-7.29.0-57.el7.x86_64                                                                                                                            4/4 
  Verifying  : curl-7.29.0-59.el7_9.1.x86_64                                                                                                                           1/4 
  Verifying  : libcurl-7.29.0-59.el7_9.1.x86_64                                                                                                                        2/4 
  Verifying  : curl-7.29.0-57.el7.x86_64                                                                                                                               3/4 
  Verifying  : libcurl-7.29.0-57.el7.x86_64                                                                                                                            4/4 

Updated:
  curl.x86_64 0:7.29.0-59.el7_9.1                                                    libcurl.x86_64 0:7.29.0-59.el7_9.1                                                   

Complete!

4. 重新扫描