CVE-2021-3546

Aliases:DEBIAN-CVE-2021-3546
Advisory lineage Upstream: 0 Downstream: 10
Modified
Published: 02 Jun 2021, 13:30
Last modified:03 Aug 2024, 17:01

Vulnerability Summary

Overall Risk (default)
medium
33/100
CVSS Score
8.2 HIGH
v3.1 (nvd)
EPSS Score
0.46% LOW
0% probability +0.42%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

02 Jun 2021, 13:30
Published
Vulnerability first disclosed
03 Aug 2024, 17:01
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
  • v2.0•MEDIUM•Score: 4.6AV:L/AC:L/Au:N/C:P/I:P/A:P

EPSS Trends

Current EPSS score: 0.46%• Percentile: 39%

Techniques & Countermeasures

  • CWE-787•Out-of-bounds Write

    The product writes data past the end, or before the beginning, of the intended buffer.

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

  • debian•debian_linux

    11.0

  • qemu•qemu

    ≤ 6.0.0

References (6)