CVE:CVE-2019-16786
CNNVD:CNNVD-201912-976
Waitress是一款用于Python的WSGI（Web服务器网关接口）服务器。
Waitress 1.3.1及之前版本中存在环境问题漏洞，该漏洞源于程序没有正确解析Transfer-Encoding标头。远程攻击者可借助特制请求利用该漏洞造成HTTP请求走私。
solution:Upgrade agendaless waitress to a higher version than 1.3.1,and avoid the version (,1.3.1); Upgrade oracle communications_cloud_native_core_network_function_cloud_native_environment to a higher version than 1.10.0,and avoid the version 1.10.0; Upgrade debian debian_linux to a higher version than 9.0,and avoid the version 9.0; Upgrade fedoraproject fedora to a higher version than 30,31,and avoid the version 30,31; Upgrade redhat openstack to a higher version than 15,and avoid the version 15