Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
Xen 4.4.x, when running on an ARM system and "handling an unknown system register access from 64-bit userspace," returns to an instruction of the trap handler for kernel space faults instead of an instruction that is associated with faults in 64-bit userspace, which allows local guest users to cause a denial of service (crash) and possibly gain privileges via a crafted process.
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 4.4.x版本中存在安全漏洞，该漏洞源于程序没有正确处理来自ARM-based系统上64位域的未知系统寄存器访问。本地攻击者可借助特制的进程利用该漏洞造成拒绝服务（崩溃），提升权限。
CVSS Information
N/A
Vulnerability Type
N/A