cve/2021/CVE-2021-4207.md

CVE-2021-4207

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.

POC

Reference

No PoCs from references.

Github

• https://github.com/ARPSyndicate/cvemon