Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
An issue was discovered in Xen 4.12.3 through 4.12.4 and 4.13.1 through 4.14.x. An x86 HVM guest with PCI pass through devices can force the allocation of all IDT vectors on the system by rebooting itself with MSI or MSI-X capabilities enabled and entries setup. Such reboots will leak any vectors used by the MSI(-X) entries that the guest might had enabled, and hence will lead to vector exhaustion on the system, not allowing further PCI pass through devices to work properly. HVM guests with PCI pass through devices can mount a Denial of Service (DoS) attack affecting the pass through of PCI devices to other guests or the hardware domain. In the latter case, this would affect the entire host.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Xen 安全漏洞
Vulnerability Description
Xen是英国剑桥（Cambridge）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 4.12.3 through 4.12.4 and 4.13.1 through 4.14.x存在安全漏洞，该漏洞允许HVM客户机拒绝服务(DoS)攻击。
CVSS Information
N/A
Vulnerability Type
N/A