Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
The copy_to_user function in the PAL emulation functionality for Xen 3.1.2 and earlier, when running on ia64 systems, allows HVM guest users to access arbitrary physical memory by triggering certain mapping operations.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Xen copy_to_user()函数本地绕过安全限制漏洞
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的实现上存在漏洞，本地攻击者可能利用此漏洞控制提升权限。 当运行在ia64系统上的时候，Xen的PAL模拟功能中的copy_to_user函数允许HVM guest用户通过触发某些映射操作访问任意物理内存。
CVSS Information
N/A
Vulnerability Type
N/A