Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
The x86 emulator in KVM 83, when a guest is configured for Symmetric Multiprocessing (SMP), does not use the Current Privilege Level (CPL) and I/O Privilege Level (IOPL) to restrict instruction execution, which allows guest OS users to cause a denial of service (guest OS crash) or gain privileges on the guest OS by leveraging access to a (1) IO port or (2) MMIO region, and replacing an instruction in between emulator entry and instruction fetch, a related issue to CVE-2010-0298.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Kvm_Qumranet KVM 83 x86算法拒绝服务漏洞和权限提升漏洞
Vulnerability Description
Symmetric Multiprocessing (SMP)设置为来宾用户时，KVM 83上的 x86算法没有正确的使用Current Privilege Level (CPL) 和 I/O Privilege Level (IOPL)来确定CPL3代码的内存访问可用性，允许操作系统的来宾用户可以通过访问(1) IO 接口 或 (2) MMIO域，导致服务拒绝(来宾操作系统崩溃)或来宾系统的特权提升，以及替换算法条目和指令获取直接的指令。
CVSS Information
N/A
Vulnerability Type
N/A