DEBIAN-CVE-2021-3546

Advisory lineage Upstream: 1 Downstream: 1
Upstream
CVE-2021-3546
Downstream
DSA-4980-1
Published: 02 Jun 2021, 14:15
Last modified:28 Apr 2026, 20:22

Vulnerability Summary

Overall Risk (default)
medium
33/100
CVSS Score
8.2 HIGH
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

02 Jun 2021, 14:15
Published
Vulnerability first disclosed
28 Apr 2026, 20:22
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•HIGH•Score: 8.2CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Affected Systems

  • debian•qemu

    < 1:5.2+dfsg-11+deb11u1 | < 1:6.1+dfsg-1 | < 1:6.1+dfsg-1 | < 1:6.1+dfsg-1

References (1)