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.
CVSS Metrics
- Vector
- CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
- Attack Vector
- local
- Complexity
- low
- Privileges
- high
- User Action
- none
- Scope
- changed
- Confidentiality
- high
- Integrity
- high
- Availability
- high
- Weaknesses
- CWE-362CWE-120CWE-362
Metadata
- Primary Vendor
- QEMU
- Published
- 4/29/2022
- Last Modified
- 3/21/2025
- Source
- NIST NVD
- Note: Verify all details with official vendor sources before applying patches.
Affected Products
qemu : qemuredhat : enterprise_linuxredhat : enterprise_linuxdebian : debian_linuxdebian : debian_linux
AI-Powered Remediation
Generate remediation guidance or a C-suite brief for this vulnerability.