Linux Bash安全漏洞修复

1.影响的系统包括

Centos

Debian

Redhat

Ubuntu

2.检查系统是否要修复

[[email protected] ~]# env x=‘() { :;}; echo vulnerable‘ bash -c "echo this is a test"
vulnerable
this is a test
[[email protected] ~]#

如果输出以上结果表示需要修复bash漏洞

3.修复漏洞

[[email protected] ~]# yum update bash -y

4.重新检查漏洞是否修复

[[email protected] ~]# env x=‘() { :;}; echo vulnerable‘ bash -c "echo this is a test"
bash: warning: x: ignoring function definition attempt
bash: error importing function definition for `x‘
this is a test
[[email protected] ~]#