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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2022-04-29T16:07:33

Updated: 2024-08-03T17:16:04.249Z

Reserved: 2022-01-13T00:00:00

Link: CVE-2021-4207

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2022-04-29T17:15:20.100

Modified: 2023-11-07T03:40:22.577

Link: CVE-2021-4207

cve-icon Redhat

Severity : Moderate

Publid Date: 2022-03-28T00:00:00Z

Links: CVE-2021-4207 - Bugzilla