Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
Xen 4.0, and 4.1, when running a 64-bit PV guest on "older" AMD CPUs, does not properly protect against a certain AMD processor bug, which allows local guest OS users to cause a denial of service (host hang) via sequential execution of instructions across a non-canonical boundary, a different vulnerability than CVE-2012-0217.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Xen 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 4.0和4.1版本存在漏洞。当运行64-bit PV guest在“较旧型号”的AMD CPU上时，程序未能免受AMD处理器BUG的影响。具备guest系统用户权限的本地攻击者利用该漏洞通过跨非规范的边界执行连续的指令，导致拒绝服务（主机挂起）。
CVSS Information
N/A
Vulnerability Type
N/A