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.
References
Link | Resource |
---|---|
https://bugzilla.redhat.com/show_bug.cgi?id=2036966 | Issue Tracking Third Party Advisory |
https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html | Mailing List Third Party Advisory |
https://security.gentoo.org/glsa/202208-27 | Third Party Advisory |
https://starlabs.sg/advisories/21-4207/ | Exploit Third Party Advisory |
https://www.debian.org/security/2022/dsa-5133 | Third Party Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: redhat
Published: 2022-04-29T16:07:33
Updated: 2022-09-05T05:06:11
Reserved: 2022-01-13T00:00:00
Link: CVE-2021-4207
JSON object: View
NVD Information
Status : Modified
Published: 2022-04-29T17:15:20.100
Modified: 2023-11-07T03:40:22.577
Link: CVE-2021-4207
JSON object: View
Redhat Information
No data.