Release Date: | 2010-02-12 |
The x86 emulator in KVM 83 does not use the Current Privilege Level (CPL) and I/O Privilege Level (IOPL) in determining the memory access available to CPL3 code, 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, a related issue to CVE-2010-0306. 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.
See more information about CVE-2010-0298 from MITRE CVE dictionary and NIST NVD
NOTE: The following CVSS v2.0 metrics and score provided are preliminary and subject to review.
Base Score: | 6.5 | Base Metrics: | AV:N/AC:L/Au:S/C:P/I:P/A:P |
Access Vector: | Network | Attack Complexity: | Low |
Authentication: | Requires single instance | Confidentiality Impact: | Partial |
Integrity Impact: | Partial | Availability Impact: | Partial |
Platform | Errata | Release Date |
Oracle Linux version 5 (kvm) | ELSA-2010-0088 | 2010-02-09 |
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