CVE-2021-3546
8.2 HIGHAn out-of-bounds write vulnerability was found in the virtio vhost-user GPU device (vhost-user-gpu) of QEMU in versions up to and includi...
Published: 2021-06-02 · Last updated: 2026-06-17
Severity and scoring
- CVSS
- 8.2 HIGH
- Vector
- CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
- CWE
- CWE-787
Affected products
| Vendor | Product |
|---|---|
| debian | debian_linux, qemu |
| qemu | debian_linux, qemu |
Description
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.
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2021-3546
- [Other]http://www.openwall.com/lists/oss-security/2021/05/31/1
- [Other]https://bugzilla.redhat.com/show_bug.cgi?id=1958978
- [Other]https://security.gentoo.org/glsa/202208-27
- [Other]https://security.netapp.com/advisory/ntap-20210720-0008/
- [Other]https://www.debian.org/security/2021/dsa-4980
- [Other]http://www.openwall.com/lists/oss-security/2021/05/31/1
- [Other]https://bugzilla.redhat.com/show_bug.cgi?id=1958978
- [Other]https://security.gentoo.org/glsa/202208-27
- [Other]https://security.netapp.com/advisory/ntap-20210720-0008/
- [Other]https://www.debian.org/security/2021/dsa-4980
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