Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
The vmx_set_uc_mode function in Xen 3.3 through 4.3, when disabling caches, allows local HVM guests with access to memory mapped I/O regions to cause a denial of service (CPU consumption and possibly hypervisor or guest kernel panic) via a crafted GFN range.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Xen 本地拒绝服务漏洞
Vulnerability Description
Xen是英国剑桥大学开发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 3.3至4.3版本中的‘vmx_set_uc_mode’函数中存在安全漏洞。在禁用高速缓存时，具有本地HVM访客权限以及内存映射I/O区域访问权限的攻击者可借助特制的GFN范围，利用该漏洞造成拒绝服务（CPU消耗并有可能管理程序或内核错误）。
CVSS Information
N/A
Vulnerability Type
N/A