Vulnerability Monitor

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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.

Published

2010-02-12T19:30:00.597

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 4.1 (MEDIUM)

CVSSv2 Vector

AV:L/AC:M/Au:S/C:P/I:P/A:P

  • Access Vector: LOCAL
  • Access Complexity: MEDIUM
  • Authentication: SINGLE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: PARTIAL
Exploitability Score

2.7

Impact Score

6.4

Weaknesses
  • Type: Primary
    CWE-264
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application kvm_qumranet kvm 83 Yes
References