CVE:CVE-2019-25041
CNNVD:CNNVD-202104-2034
Unbound是荷兰NLnet Labs（Nlnet Labs）基金会的一款支持验证递归和缓存的DNS解析器。
Unbound 1.9.5之前版本存在安全漏洞，该漏洞允许通过dname pkt拷贝中的压缩名称断言失败。
solution:Upgrade nlnetlabs unbound to a higher version than 1.9.5,and avoid the version (,1.9.5); Upgrade debian debian_linux to a higher version than 9.0,and avoid the version 9.0