CVE-2021-3546
Published: 2 June 2021
An out-of-bounds write vulnerability was found in the virtio vhost-user GPU device (vhost-user-gpu) of QEMU in versions up to and including 6.0. The flaw occurs while processing the 'VIRTIO_GPU_CMD_GET_CAPSET' command from the guest. It could allow a privileged guest user to crash the QEMU process on the host, resulting in a denial of service condition, or potential code execution with the privileges of the QEMU process.
Notes
Author | Note |
---|---|
mdeslaur | same commits as CVE-2021-3544 |
Priority
Status
Severity score breakdown
Parameter | Value |
---|---|
Base score | 8.2 |
Attack vector | Local |
Attack complexity | Low |
Privileges required | High |
User interaction | None |
Scope | Changed |
Confidentiality | High |
Integrity impact | High |
Availability impact | High |
Vector | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3546
- https://lists.nongnu.org/archive/html/qemu-devel/2021-05/msg01155.html
- https://lists.nongnu.org/archive/html/qemu-devel/2021-05/msg01154.html
- https://ubuntu.com/security/notices/USN-5010-1
- https://ubuntu.com/security/notices/USN-5307-1
- NVD
- Launchpad
- Debian