Qemu has integer overflows because IOReadHandler and its associated functions use a…
Priority LOW 25CWE-190Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-190 and the CVSS impact.
Summary
Qemu has integer overflows because IOReadHandler and its associated functions use a signed integer data type for a size value.
Why it matters now
EPSS 0.00443 38th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
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
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:qemu:qemu:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | QEMU |
| cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* | 6.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:openstack:8:*:*:*:*:*:*:* | 8 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:openstack:9:*:*:*:*:*:*:* | 9 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:openstack:10:*:*:*:*:*:*:* | 10 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:openstack:12:*:*:*:*:*:*:* | 12 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:openstack:13:*:*:*:*:*:*:* | 13 | Vulnerable | Red Hat |
- cpe:2.3:a:qemu:qemu:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·QEMU
- cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:openstack:8:*:*:*:*:*:*:* Versions 8 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:openstack:9:*:*:*:*:*:*:* Versions 9 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:openstack:10:*:*:*:*:*:*:* Versions 10 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:openstack:12:*:*:*:*:*:*:* Versions 12 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:openstack:13:*:*:*:*:*:*:* Versions 13 Vulnerable ·Red Hat
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Not affected: 9 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat OpenStack Platform 10 (Newton)
- Red Hat OpenStack Platform 12 (Pike)
- Red Hat OpenStack Platform 13 (Queens)
- Red Hat OpenStack Platform 14 (Rocky)
- Red Hat OpenStack Platform 8 (Liberty)
- Red Hat OpenStack Platform 9 (Mitaka)
Timeline
- 2026-10-02 Threatist record created from CVE-2018-18438
- 2026-10-03 Alias added: GHSA-5g5x-38wg-3rxr
References
Patch 2
Sources
- CVE-2018-18438 · CVE Program
- CVE-2018-18438 · NVD
- FIRST EPSS
- GHSA-5g5x-38wg-3rxr · GitHub Advisory Database · CC BY 4.0
- CVE-2018-18438 · 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