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Fencer Intel
medium 6.5

CVE-2010-0298 json

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 a…

published 16y ago modified 4mo ago also EUVD-2010-0329

cvss
6.5
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.4%
EPSS 2.4% chance of exploitation in 30 days, percentile 84%
public exploits
0
none known

Summary

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.

Patch / fix

  • rhev-hypervisor RHEL 5 5.4-2.1.8.el5_4rhev2_1
  • rhev-hypervisor-pxe RHEL 5 5.4-2.1.8.el5_4rhev2_1
  • kvm RHEL 5 VIRTUALIZATION 83-105.el5_4.22
  • kmod-kvm RHEL 5 VIRTUALIZATION 83-105.el5_4.22
  • kvm-tools RHEL 5 VIRTUALIZATION 83-105.el5_4.22
  • kvm-qemu-img RHEL 5 VIRTUALIZATION 83-105.el5_4.22

red hat advisories RHSA-2010:0095RHSA-2010:0088

  • kernel CBL-Mariner 2.0 5.10.78.1-1

azure linux advisories AZL-6514

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2010-0298 updated cvss 6.9

kvm: emulator privilege escalation

  • Red Hat Enterprise Linux Desktop Multi OS (v. 5 client) kvm 83-105.el5_4.22, kmod-kvm 83-105.el5_4.22, kvm-tools 83-105.el5_4.22, kvm-qemu-img 83-105.el5_4.22 Red Hat Enterprise Linux Virtualization (v. 5 server) kvm 83-105.el5_4.22, kmod-kvm 83-105.el5_4.22, kvm-tools 83-105.el5_4.22, kvm-qemu-img 83-105.el5_4.22
    fixed: vendor fix RHSA-2010:0088
  • Red Hat Enterprise Virtualization Hypervisor 5 rhev-hypervisor 5.4-2.1.8.el5_4rhev2_1, rhev-hypervisor-pxe 5.4-2.1.8.el5_4rhev2_1
    fixed: vendor fix RHSA-2010:0095

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.42% chance of exploitation in the next 30 days, higher than 84% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P

Classification

Weakness
  • CWE-264 Permissions, Privileges, and Access Controls
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.