Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
The vgic_v2_to_sgi function in arch/arm/vgic-v2.c in Xen 4.5.x, when running on ARM hardware with general interrupt controller (GIC) version 2, allows local guest users to cause a denial of service (host crash) by writing an invalid value to the GICD.SGIR register.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Xen 输入验证漏洞
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 4.5.0版本的arch/arm/vgic-v2.c文件中的‘vgic_v2_to_sgi’函数存在安全漏洞。当程序运行在带有general interrupt controller(GIC) 2版本的ARM硬件平台上时，本地虚拟机端攻击者可通过向GICD.SGIR寄存器写入无效的值利用该漏洞造成拒绝服务（主机崩溃）。
CVSS Information
N/A
Vulnerability Type
N/A