CVE:CVE-2020-11740
CNNVD:CNNVD-202004-654
Xen是英国剑桥大学的一款开源的虚拟机监视器产品。该产品能够使不同和不兼容的操作系统运行在同一台计算机上，并支持在运行时进行迁移，保证正常运行并且避免宕机。
Xen 4.13.x及之前版本中的xenoprof存在安全漏洞。攻击者可利用该漏洞获取敏感信息。
solution:Upgrade xen xen to a higher version than 4.13.0,4.13.0:rc1,4.13.0:rc2,and avoid the version [3.2.0,4.13.0],4.13.0:rc1,4.13.0:rc2; Upgrade debian debian_linux to a higher version than 10.0,and avoid the version 10.0; Upgrade fedoraproject fedora to a higher version than 30,31,32,and avoid the version 30,31,32; Upgrade opensuse leap to a higher version than 15.1,and avoid the version 15.1