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.
References
Configurations
Information
Published : 2010-02-12 11:30
Updated : 2017-09-18 18:30
NVD link : CVE-2010-0306
Mitre link : CVE-2010-0306
JSON object : View
CWE
CWE-264
Permissions, Privileges, and Access Controls
Products Affected
kvm_qumranet
- kvm