CVE:CVE-2019-20445
CNNVD:CNNVD-202001-1318
Netty是Netty社区的一款非阻塞I/O客户端-服务器框架，它主要用于开发Java网络应用程序，如协议服务器和客户端等。
Netty 4.1.44之前版本中的HttpObjectDecoder.java文件存在环境问题漏洞。该漏洞源于网络系统或产品的环境因素不合理。
solution:Upgrade netty netty to a higher version than 4.1.44,and avoid the version (,4.1.44); Upgrade debian debian_linux to a higher version than 8.0,9.0,10.0,and avoid the version 8.0,9.0,10.0; Upgrade fedoraproject fedora to a higher version than 33,and avoid the version 33; Upgrade canonical ubuntu_linux to a higher version than 18.04,and avoid the version 18.04; Upgrade redhat jboss_amq_clients to a higher version than 2,and avoid the version 2; Upgrade redhat jboss_enterprise_application_platform to a higher version than 7.2,7.3,and avoid the version 7.2,7.3; Upgrade apache spark to a higher version than 2.4.7,2.4.8,and avoid the version 2.4.7,2.4.8