CVE-2010-0306 — MEDIUM (4.1)

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 Score

4.1

MEDIUM

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

Confidentiality

PARTIAL

Integrity

PARTIAL

Availability

PARTIAL

Affected Products

Vendor	Product	Versions
Kvm Qumranet	Kvm	83

Related Weaknesses (CWE)

CWE-264

References

FAQ

What is CVE-2010-0306?

CVE-2010-0306 is a vulnerability with a CVSS score of 4.1 (MEDIUM). 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 execut...

How severe is CVE-2010-0306?

CVE-2010-0306 has been rated MEDIUM with a CVSS base score of 4.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2010-0306?

Check the references section above for vendor advisories and patch information. Affected products include: Kvm Qumranet Kvm.