Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
The vCPU context-switch implementation in Xen through 4.8.x improperly interacts with the Memory Protection Extensions (MPX) and Protection Key (PKU) features, which makes it easier for guest OS users to defeat ASLR and other protection mechanisms, aka XSA-220.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Xen 安全漏洞
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 4.8.x及之前的版本中的vCPU context-switch实现过程存在安全漏洞，该漏洞源于程序没有正确的与Memory Protection Extensions (MPX)和Protection Key (PKU)功能进行交互。攻击者可利用该漏洞破坏ASLR和其他保护机制。
CVSS Information
N/A
Vulnerability Type
N/A