今天刚刚爆出Bash安全漏洞,SSH bash紧急安全补丁!重要!测试是否存在漏洞,执行以下命令:[root@keepalivenginxmaster /]# env x='() { :;}; echo vulnerable' bash -c "echo this is a test"vulnerablethis is a test如果显示如上,那么,很遗憾,必须立即打上安全补丁修复,临时解决办法为:yum -y update bash升级bash后,执行测试:[root@keepalivenginxmaster /]# env x='() { :;}; echo vulnerable' bash -c "echo this is a test"bash: warning: x: ignoring function definition attemptbash: error importing function definition for `x'this is a test