Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
A flaw was found in the way Linux kernel KVM hypervisor before 4.18 emulated instructions such as sgdt/sidt/fxsave/fxrstor. It did not check current privilege(CPL) level while emulating unprivileged instructions. An unprivileged guest user/process could use this flaw to potentially escalate privileges inside guest.
CVSS Information
N/A
Vulnerability Type
带着不必要的权限执行
Vulnerability Title
Linux kernel KVM 安全漏洞
Vulnerability Description
Linux kernel是美国Linux基金会发布的操作系统Linux所使用的内核。KVM是其中的一个基于内核的虚拟机。 Linux kernel中的KVM 4.18之前版本存在安全漏洞，该漏洞源于程序没有检测CPL（当前执行任务或程序的特权级）。攻击者可利用该漏洞提升权限。
CVSS Information
N/A
Vulnerability Type
N/A