Vulnerability Information
Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
N/A
Vulnerability Description
The (1) XENMEM_decrease_reservation, (2) XENMEM_populate_physmap, and (3) XENMEM_exchange hypercalls in Xen 4.2 and earlier allow local guest administrators to cause a denial of service (long loop and hang) via a crafted extent_order value.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Xen ‘extent_order’值本地拒绝服务漏洞
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 4.2和较早版本中的(1)XENMEM_decrease_reservation(2)XENMEM_populate_physmap和(3)XENMEM_exchange超调用中存在漏洞。通过特制的extent_order值，具有访客管理员权限的本地攻击者可利用该漏洞导致拒绝服务（长期循环和挂起）。
CVSS Information
N/A
Vulnerability Type
N/A