CVE:CVE-2012-1192
CNNVD:CNNVD-201202-350
Unbound是荷兰NLnet实验室负责维护的一套基于C语言的开源递归式DNS服务器软件。
Unbound 1.4.11之前版本中的resolver中存在漏洞，该漏洞源于在处理查询记录响应的过程中重写NS记录中的缓存服务器名称和TTL值。远程攻击者可利用该漏洞借助"ghost domain names"攻击触发已撤销域名的持续可解性。
solution:Upgrade unbound unbound to a higher version than 1.4.10,0.0,0.1,0.2,0.3,0.4,0.5,0.6,0.7,0.7.1,0.7.2,0.8,0.9,0.10,0.11,1.0.0,1.0.1,1.0.2,1.1.0,1.1.1,1.2.0,1.2.1,1.3.0,1.3.1,1.3.2,1.3.3,1.3.4,1.4.0,1.4.1,1.4.2,1.4.3,1.4.4,1.4.5,1.4.6,1.4.7,1.4.8,1.4.9,and avoid the version (,1.4.10],0.0,0.1,0.2,0.3,0.4,0.5,0.6,0.7,0.7.1,0.7.2,0.8,0.9,0.10,0.11,1.0.0,1.0.1,1.0.2,1.1.0,1.1.1,1.2.0,1.2.1,1.3.0,1.3.1,1.3.2,1.3.3,1.3.4,1.4.0,1.4.1,1.4.2,1.4.3,1.4.4,1.4.5,1.4.6,1.4.7,1.4.8,1.4.9