The x86 emulator in KVM 83 does not use the Current Privilege Level (CPL) and I/O…
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-264.
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
Red Hat 2 advisories
- RHSA-2010:0095 Released 2010-02-09 · Red Hat rating Importantrhev-hypervisor security and bug fix update
- 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
- RHSA-2010:0088 Released 2010-02-09 · Red Hat rating Importantkvm security and bug fix update
- Red Hat Enterprise Linux Desktop Multi OS (v. 5 client) kmod-kvm-83-105.el5_4.22, kvm-83-105.el5_4.22, kvm-qemu-img-83-105.el5_4.22 +1
- Red Hat Enterprise Linux Virtualization (v. 5 server) kmod-kvm-83-105.el5_4.22, kvm-83-105.el5_4.22, kvm-qemu-img-83-105.el5_4.22 +1
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux Desktop Multi OS (v. 5 client) | Fixed | RHSA-2010:0088 |
| Red Hat Enterprise Linux Virtualization (v. 5 server) | Fixed | RHSA-2010:0088 |
| Red Hat Enterprise Virtualization Hypervisor 5 | Fixed | RHSA-2010:0095 |
Timeline
- 2026-10-02 Threatist record created from CVE-2010-0298
- 2026-10-03 Alias added: GHSA-h7hj-hjcj-pwpj
References
Sources
- CVE-2010-0298 · CVE Program
- CVE-2010-0298 · NVD
- FIRST EPSS
- GHSA-h7hj-hjcj-pwpj · GitHub Advisory Database · CC BY 4.0
- CVE-2010-0298 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences