CVE:CVE-2018-20551
CNNVD:CNNVD-201812-1209
Poppler是一个用于生成PDF的C++类库，该库是从Xpdf（PDF阅读器）继承而来。
Poppler 0.72.0版本中存在安全漏洞。攻击者可利用该漏洞造成拒绝服务。
solution:Upgrade freedesktop poppler to a higher version than 0.72.0,and avoid the version 0.72.0; Upgrade canonical ubuntu_linux to a higher version than 14.04,16.04,18.04,18.10,and avoid the version 14.04,16.04,18.04,18.10