A flaw was found in the QXL display...... CVE-2021-4207

4.6 AV AC AU C I A
发布: 2022-04-29
修订: 2022-05-10

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.