CVE:CVE-2020-1730
CNNVD:CNNVD-202004-544
libssh是libssh组织的一个用于访问SSH服务的C语言开发包，它能够执行远程命令、文件传输，同时为远程的程序提供安全的传输通道。
libssh 0.8.9之前版本和0.9.4之前版本中存在代码问题漏洞，该漏洞源于程序处理AES-CTR（或DES密码，如果启用）密码的方式存在错误。攻击者可利用该漏洞导致拒绝服务。
solution:Upgrade libssh libssh to a higher version than 0.8.9,0.9.4,and avoid the version [0.8.0,0.8.9),[0.9.0,0.9.4); Upgrade netapp cloud_backup to a higher version than -; Upgrade canonical ubuntu_linux to a higher version than 18.04,19.10,and avoid the version 18.04,19.10; Upgrade fedoraproject fedora to a higher version than 31,32,and avoid the version 31,32; Upgrade redhat enterprise_linux to a higher version than 8.0,and avoid the version 8.0; Upgrade oracle mysql_workbench to a higher version than 8.0.21,and avoid the version (,8.0.21]