CVE:CVE-2015-4481
CNNVD:CNNVD-201508-345
Mozilla Firefox和Firefox ESR都是美国Mozilla基金会开发的浏览器产品。Firefox是一款开源Web浏览器；Firefox ESR是Firefox的一个延长支持版本。Mozilla Maintenance Service是其中的一个静默升级程序（即在不通知你的情况下自动将浏览器升级到最新版本）组件。 
基于Windows平台的Mozilla Firefox 40.0之前版本和Firefox ESR 38.2之前38.x版本的Mozilla Maintenance Service组件中存在竞争条件漏洞。本地攻击者可借助硬链接利用该漏洞写入任意文件，并获取权限。
solution:Upgrade mozilla firefox to a higher version than 39.0.3,and avoid the version (,39.0.3]; Upgrade mozilla firefox_esr to a higher version than 38.0,38.0.1,38.0.5,38.1.0,and avoid the version 38.0,38.0.1,38.0.5,38.1.0; Upgrade opensuse opensuse to a higher version than 13.1,13.2,and avoid the version 13.1,13.2; Upgrade oracle solaris to a higher version than 11.3,and avoid the version 11.3