CVE:CVE-2012-1111
CNNVD:CNNVD-201410-1310
LightDM（又名Light Display Manager）是一套Linux桌面的桌面显示管理器，其目的是成为X.org X服务器的标准显示管理器，并包含了跨桌面环境、减少外部依赖的代码库等特性。
LightDM 1.0.9之前版本中存在安全漏洞，该漏洞源于程序打开子进程前没有正确关闭文件描述符。本地攻击者可利用该漏洞向lightdm日志写入内容。
solution:Upgrade robert_ancell lightdm to a higher version than 1.0.8,0.0.1,0.0.2,0.0.3,0.0.4,0.1.0,0.1.1,0.1.2,0.2.0,0.2.1,0.2.2,0.2.3,0.3.0,0.3.1,0.3.2,0.3.3,0.3.4,0.3.5,0.3.6,0.4.0,0.4.1,0.4.2,0.4.3,0.4.4,0.9.0,0.9.1,0.9.2,0.9.3,0.9.4,0.9.5,0.9.6,0.9.7,0.9.8,1.0.0,1.0.1,1.0.2,1.0.3,1.0.4,1.0.5,1.0.6,1.0.10,1.0.11,and avoid the version (,1.0.8],0.0.1,0.0.2,0.0.3,0.0.4,0.1.0,0.1.1,0.1.2,0.2.0,0.2.1,0.2.2,0.2.3,0.3.0,0.3.1,0.3.2,0.3.3,0.3.4,0.3.5,0.3.6,0.4.0,0.4.1,0.4.2,0.4.3,0.4.4,0.9.0,0.9.1,0.9.2,0.9.3,0.9.4,0.9.5,0.9.6,0.9.7,0.9.8,1.0.0,1.0.1,1.0.2,1.0.3,1.0.4,1.0.5,1.0.6,1.0.10,1.0.11