CVE:CVE-2012-0962
CNNVD:CNNVD-201212-246
Ubuntu Aptdaemon 0.43版本中存在安全绕过漏洞。当验证PPA GPG密钥时，攻击者利用该漏洞进行中间人攻击。成功的利用可安装修改的数据包库的GPG密钥，可导致进一步攻击。
solution:Upgrade sebastian_heinlein aptdaemon to a higher version than 0.43,and avoid the version 0.43; Upgrade canonical ubuntu_linux to a higher version than 11.10,12.04,and avoid the version 11.10,12.04