CVE:CVE-2018-19149
CNNVD:CNNVD-201811-262
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 0.70.0之前版本中的‘_poppler_attachment_new’函数存在安全漏洞。攻击者可利用该漏洞造成拒绝服务（空指针逆向引用）。
solution:Upgrade freedesktop poppler to a higher version than 0.70.0,and avoid the version (,0.70.0); 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