Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
The kvm_emulate_hypercall function in arch/x86/kvm/x86.c in KVM in the Linux kernel 2.6.25-rc1, and other versions before 2.6.31, when running on x86 systems, does not prevent access to MMU hypercalls from ring 0, which allows local guest OS users to cause a denial of service (guest kernel crash) and read or write guest kernel memory via unspecified "random addresses."
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Linux Kernel KVM 'kvm_emulate_hypercall()' 本地拒绝服务漏洞
Vulnerability Description
当在x86系统上运行时，Linux kernel 2.6.25-rc1以及2.6.31之前的其他版本的KVM中的arch/x86/kvm/x86.c里的kvm_emulate_hypercall函数没有阻止来自ring0的对MMU hypercalls的访问，这使得本地子操作系统用户可以借助未明的"随机地址"，引起拒绝服务攻击(子内核崩溃)和读取或写子内存。
CVSS Information
N/A
Vulnerability Type
N/A