DEBIAN-CVE-2021-3713

Advisory lineage Upstream: 1 Downstream: 3
Upstream
CVE-2021-3713
Published: 25 Aug 2021, 19:15
Last modified:28 Apr 2026, 20:22

Vulnerability Summary

Overall Risk (default)
medium
30/100
CVSS Score
7.4 HIGH
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

25 Aug 2021, 19:15
Published
Vulnerability first disclosed
28 Apr 2026, 20:22
Last Modified
Vulnerability information updated

Description

An out-of-bounds write flaw was found in the UAS (USB Attached SCSI) device emulation of QEMU in versions prior to 6.2.0-rc0. The device uses the guest supplied stream number unchecked, which can lead to out-of-bounds access to the UASDevice->data3 and UASDevice->status3 fields. A malicious guest user could use this flaw to crash QEMU or potentially achieve code execution with the privileges of the QEMU process on the host.

CVSS Metrics

  • v3.1•HIGH•Score: 7.4CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected Systems

  • debian•qemu

    < 1:5.2+dfsg-11+deb11u1 | < 1:6.1+dfsg-2 | < 1:6.1+dfsg-2 | < 1:6.1+dfsg-2

References (1)