CVE:CVE-2016-3992
CNNVD:CNNVD-201604-165
cronic是软件开发者Daniel Lange所负责维护的一个用于包装cron作业以防止多余的电子邮件发送的shell脚本。
cronic 3之前的版本中存在安全漏洞。本地攻击者可通过对/tmp目录下的文件（cronic.out.$$、cronic.err.$$或cronic.trace.$$）实施符号链接攻击利用该漏洞写入任意文件。
solution:Upgrade cronic_project cronic to a higher version than 2,and avoid the version 2; Upgrade debian debian_linux to a higher version than 7.0,8.0,and avoid the version 7.0,8.0; Upgrade opensuse leap to a higher version than 42.1,and avoid the version 42.1; Upgrade opensuse opensuse to a higher version than 13.2,and avoid the version 13.2