CVE:CVE-2011-3661
CNNVD:CNNVD-201112-386
Firefox是一款非常流行的开源WEB浏览器。Thunderbird是一个邮件客户端，支持IMAP、POP邮件协议以及HTML邮件格式。SeaMonkey是开源的Web浏览器、邮件和新闻组客户端、IRC会话客户端和HTML编辑器。
Mozilla Firefox/Thunderbird/SeaMonkey在YARR常规表达式库的实现上存在拒绝服务漏洞，攻击者可利用此漏洞造成拒绝服务，可能会执行任意代码。
solution:Upgrade mozilla firefox to a higher version than 4.0,4.0:beta1,4.0:beta10,4.0:beta11,4.0:beta12,4.0:beta2,4.0:beta3,4.0:beta4,4.0:beta5,4.0:beta6,4.0:beta7,4.0:beta8,4.0:beta9,4.0.1,5.0,5.0.1,6.0,6.0.1,6.0.2,7.0,7.0.1,8.0,and avoid the version 4.0,4.0:beta1,4.0:beta10,4.0:beta11,4.0:beta12,4.0:beta2,4.0:beta3,4.0:beta4,4.0:beta5,4.0:beta6,4.0:beta7,4.0:beta8,4.0:beta9,4.0.1,5.0,5.0.1,6.0,6.0.1,6.0.2,7.0,7.0.1,8.0; Upgrade mozilla seamonkey to a higher version than 2.5,1.0,1.0:alpha,1.0:beta,1.0.1,1.0.2,1.0.3,1.0.4,1.0.5,1.0.6,1.0.7,1.0.8,1.0.9,1.0.99,1.1,1.1:alpha,1.1:beta,1.1.1,1.1.2,1.1.3,1.1.4,1.1.5,1.1.5:1.1.10,1.1.6,1.1.7,1.1.8,1.1.9,1.1.10,1.1.11,1.1.12,1.1.13,1.1.14,1.1.15,1.1.16,1.1.17,1.1.18,1.1.19,1.5.0.8,1.5.0.9,1.5.0.10,2.0,2.0:alpha_1,2.0:alpha_2,2.0:alpha_3,2.0:beta_1,2.0:beta_2,2.0:rc1,2.0:rc2,2.0.1,2.0.2,2.0.3,2.0.4,2.0.5,2.0.6,2.0.7,2.0.8,2.0.9,2.0.10,2.0.11,2.0.12,2.0.13,2.0.14,2.0a1,2.0a1pre,2.1:alpha1,2.1:alpha2,2.1:alpha3,2.3.3,and avoid the version (,2.5],1.0,1.0:alpha,1.0:beta,1.0.1,1.0.2,1.0.3,1.0.4,1.0.5,1.0.6,1.0.7,1.0.8,1.0.9,1.0.99,1.1,1.1:alpha,1.1:beta,1.1.1,1.1.2,1.1.3,1.1.4,1.1.5,1.1.5:1.1.10,1.1.6,1.1.7,1.1.8,1.1.9,1.1.10,1.1.11,1.1.12,1.1.13,1.1.14,1.1.15,1.1.16,1.1.17,1.1.18,1.1.19,1.5.0.8,1.5.0.9,1.5.0.10,2.0,2.0:alpha_1,2.0:alpha_2,2.0:alpha_3,2.0:beta_1,2.0:beta_2,2.0:rc1,2.0:rc2,2.0.1,2.0.2,2.0.3,2.0.4,2.0.5,2.0.6,2.0.7,2.0.8,2.0.9,2.0.10,2.0.11,2.0.12,2.0.13,2.0.14,2.0a1,2.0a1pre,2.1:alpha1,2.1:alpha2,2.1:alpha3,2.3.3; Upgrade mozilla thunderbird to a higher version than 5.0,6.0,6.0.1,6.0.2,7.0,7.0.1,8.0,and avoid the version 5.0,6.0,6.0.1,6.0.2,7.0,7.0.1,8.0