Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
Xen 3.3.x through 4.5.x and the Linux kernel through 3.19.1 do not properly restrict access to PCI command registers, which might allow local guest OS users to cause a denial of service (non-maskable interrupt and host crash) by disabling the (1) memory or (2) I/O decoding for a PCI Express device and then accessing the device, which triggers an Unsupported Request (UR) response.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Xen 权限许可和访问控制漏洞
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 3.2.x版本至4.5.x版本中存在安全漏洞，该漏洞源于程序没有正确限制对PCI命令寄存器的访问。本地虚拟机端攻击者可利用该漏洞造成拒绝服务（non-maskable中断和主机崩溃）。
CVSS Information
N/A
Vulnerability Type
N/A