Description
A flaw was found in the QXL display device emulation in QEMU. A double fetch of guest controlled values `cursor->header.width` and `cursor->header.height` can lead to the allocation of a small cursor object followed by a subsequent heap-based buffer overflow. A malicious privileged guest user could use this flaw to crash the QEMU process on the host or potentially execute arbitrary code within the context of the QEMU process.
Metrics
CVSS 3.1 8.2/10
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | QEMU | qemu-kvm 7.0.0 |
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2036966Issue Tracking, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/09/msg00008.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202208-27Third Party Advisory
- https://starlabs.sg/advisories/21-4207/Exploit, Third Party Advisory
- https://www.debian.org/security/2022/dsa-5133Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2036966Issue Tracking, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/09/msg00008.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202208-27Third Party Advisory
- https://security.netapp.com/advisory/ntap-20250321-0009/
- https://starlabs.sg/advisories/21-4207/Exploit, Third Party Advisory
- https://www.debian.org/security/2022/dsa-5133Third Party Advisory
Timeline
- Published
- Apr 29, 2022
- Last modified
- Jun 17, 2026
- NVD status
- Modified