CVE:CVE-2016-2794
CNNVD:CNNVD-201603-163
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。Graphite是一套使用Python语言编写、采用Django框架的企业级开源系统监控工具（数据绘图），它通过第三方工具或插件进行数据收集、统计，最后完成数据绘图。Graphite 2是Graphite的一个升级版。
Mozilla Firefox和Firefox ESR中使用的Graphite 2中的‘graphite2::TtfUtil::CmapSubtable12NextCodepoint’函数存在安全漏洞。远程攻击者可借助特制的Graphite智能字体利用该漏洞造成拒绝服务（缓冲区越边界读取）。以下版本受到影响：Mozilla Firefox 45.0之前版本，Firefox ESR 38.7之前38.x版本，Graphite 2 1.3.6之前版本。
solution:Upgrade mozilla firefox to a higher version than 44.0.2,and avoid the version (,44.0.2]; Upgrade mozilla firefox_esr to a higher version than 38.0,38.0.1,38.0.5,38.1.0,38.1.1,38.2.0,38.2.1,38.3.0,38.4.0,38.5.0,38.5.1,38.6.0,38.6.1,and avoid the version 38.0,38.0.1,38.0.5,38.1.0,38.1.1,38.2.0,38.2.1,38.3.0,38.4.0,38.5.0,38.5.1,38.6.0,38.6.1; Upgrade sil graphite2 to a higher version than 1.3.5,and avoid the version (,1.3.5]; Upgrade opensuse leap to a higher version than 42.1,and avoid the version 42.1; Upgrade opensuse opensuse to a higher version than 13.1,13.2,and avoid the version 13.1,13.2; Upgrade suse linux_enterprise to a higher version than 12.0,and avoid the version 12.0; Upgrade oracle linux to a higher version than 5.0,6,7,and avoid the version 5.0,6,7