CVE-2021-4207 Detail
This vulnerability is currently awaiting analysis.
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.
Severity
References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to [email protected].
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-120 | Buffer Copy without Checking Size of Input (‘Classic Buffer Overflow’) | Red Hat, Inc. |
| CWE-362 | Concurrent Execution using Shared Resource with Improper Synchronization (‘Race Condition’) | Red Hat, Inc. |
Change History
0 change records found show changes
Quick Info
CVE Dictionary Entry:
CVE-2021-4207
NVD Published Date:
04/29/2022
NVD Last Modified:
04/29/2022
Source:
Red Hat, Inc.