漏洞信息
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Vulnerability Title
N/A
Vulnerability Description
insufficient TLB flush for x86 PV guests in shadow mode For migration as well as to work around kernels unaware of L1TF (see XSA-273), PV guests may be run in shadow paging mode. To address XSA-401, code was moved inside a function in Xen. This code movement missed a variable changing meaning / value between old and new code positions. The now wrong use of the variable did lead to a wrong TLB flush condition, omitting flushes where such are necessary.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Xen 资源管理错误漏洞
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 XSA-401 所有版本存在资源管理错误漏洞,该漏洞源于错误使用变量确实导致了错误的 TLB。
CVSS Information
N/A
Vulnerability Type
N/A