Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
The do_physdev_op function in Xen 4.1.5, 4.1.6.1, 4.2.2 through 4.2.3, and 4.3.x does not properly restrict access to the (1) PHYSDEVOP_prepare_msix and (2) PHYSDEVOP_release_msix operations, which allows local PV guests to cause a denial of service (host or guest malfunction) or possibly gain privileges via unspecified vectors.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Xen ‘do_physdev_op’函数权限许可和访问控制漏洞
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中的‘do_physdev_op’函数中存在安全漏洞，该漏洞源于程序没有限制访问‘PHYSDEVOP_{prepare,release}_msix’操作。本地PV攻击者可利用该漏洞造成拒绝服务（主机或访客故障）或获取提权。以下版本受到影响：Xen 4.1.5，4.1.6.1，4.2.2至4.2.3，4.3.x。
CVSS Information
N/A
Vulnerability Type
N/A