Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
The acceleration support for the "REP MOVS" instruction in Xen 4.4.x, 3.2.x, and earlier lacks properly bounds checking for memory mapped I/O (MMIO) emulated in the hypervisor, which allows local HVM guests to cause a denial of service (host crash) via unspecified vectors.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Xen 代码注入漏洞
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acceleration support for the "REP MOVS" instruction中存在安全漏洞，该漏洞源于程序没有对hypervisor上模拟的内存映射I/O（MMIO）执行正确的边界检查。本地HVM虚拟机端攻击者可利用该漏洞造成拒绝服务（主机崩溃）。以下版本受到影响：Xen 4.4.x版本，3.2.x版本，3.2.
CVSS Information
N/A
Vulnerability Type
N/A