CVE:CVE-2018-7549
CNNVD:CNNVD-201802-669
zsh是一个使用在Linux系统中的交互式命令解释器和命令编程语言。
zsh 5.4.2及之前的版本中的params.c文件存在安全漏洞。攻击者可利用该漏洞造成拒绝服务（崩溃）。
solution:Upgrade zsh zsh to a higher version than 5.4.2,and avoid the version (,5.4.2]; Upgrade redhat enterprise_linux_desktop to a higher version than 7.0,and avoid the version 7.0; Upgrade redhat enterprise_linux_server to a higher version than 7.0,and avoid the version 7.0; Upgrade redhat enterprise_linux_workstation to a higher version than 7.0,and avoid the version 7.0; Upgrade canonical ubuntu_linux to a higher version than 14.04,16.04,17.10,and avoid the version 14.04,16.04,17.10