Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
The vmx_set_msr function in arch/x86/kvm/vmx.c in the VMX implementation in the KVM subsystem in the Linux kernel before 2.6.29.1 on the i386 platform allows guest OS users to cause a denial of service (OOPS) by setting the EFER_LME (aka "Long mode enable") bit in the Extended Feature Enable Register (EFER) model-specific register, which is specific to the x86_64 platform.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Linux Kernel 'arch/x86/kvm/vmx.c'本地拒绝服务漏洞
Vulnerability Description
Linux kernel是美国Linux基金会发布的开源操作系统Linux所使用的内核。NFSv4 implementation是其中的一个分布式文件系统协议。 Linux Kernel的arch/x86/kvm/vmx.c文件中的vmx_set_msr()函数没有正确地限制对EFER寄存器的访问。vmx_set_msr()不允许i386 guest访问EFER寄存器，但本地用户仍可通过开关中的default:标记访问。如果guest设置了EFER_LME的话，就可以导致主机崩溃。
CVSS Information
N/A
Vulnerability Type
N/A