Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
The XENMEM_exchange handler in Xen 4.2 and earlier does not properly check the memory address, which allows local PV guest OS administrators to cause a denial of service (crash) or possibly gain privileges via unspecified vectors that overwrite memory in the hypervisor reserved range.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Xen 输入验证错误漏洞
Vulnerability Description
Xen是英国剑桥（Cambridge）大学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 4.2和较早版本存在输入验证错误漏洞，该漏洞源于没有正确校验内存地址。通过使用未明向量覆盖虚拟机管理程序保留范围内存，具有PV访客操作系统管理员权限的本地攻击者可利用该漏洞导致拒绝服务或获得特权。
CVSS Information
N/A
Vulnerability Type
N/A