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VULNERABILITIES

CVE-2021-3713 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.4 HIGHVector:CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://bugzilla.redhat.com/show_bug.cgi?id=1994640 CVEIssue TrackingPatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2021/09/msg00000.html CVEMailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html CVEMailing ListThird Party Advisory
https://security.gentoo.org/glsa/202208-27 CVEThird Party Advisory
https://security.netapp.com/advisory/ntap-20210923-0006/ CVEThird Party Advisory

see all 12 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-787Out-of-bounds Write[email protected]
CWE-787Out-of-bounds Write[email protected]

Affected Products

ProductVersions
qemu qemu
<= 6.1.0

CPE

  • cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
debian debian linux
9.0
10.0
11.0

CPE

  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
  • cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
  • cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

12 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2021-3713
NVD Published Date:
Aug 25, 2021
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2021-3713 Details - Not Deferred