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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2010-02-12T19:00:00

Updated: 2024-08-07T00:45:11.836Z

Reserved: 2010-01-12T00:00:00

Link: CVE-2010-0306

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2010-02-12T19:30:00.597

Modified: 2024-11-21T01:11:56.637

Link: CVE-2010-0306

cve-icon Redhat

Severity : Important

Publid Date: 2010-02-09T00:00:00Z

Links: CVE-2010-0306 - Bugzilla