CVE-2021-3713
7.4 HIGHAn 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
Published: 2021-08-25 · Last updated: 2026-06-17
Severity and scoring
- CVSS
- 7.4 HIGH
- Vector
- CVSS:3.1/AV:P/AC:L/PR:L/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 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.
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2021-3713
- [Patch]https://bugzilla.redhat.com/show_bug.cgi?id=1994640
- [Other]https://lists.debian.org/debian-lts-announce/2021/09/msg00000.html
- [Other]https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html
- [Other]https://security.gentoo.org/glsa/202208-27
- [Other]https://security.netapp.com/advisory/ntap-20210923-0006/
- [Other]https://www.debian.org/security/2021/dsa-4980
- [Patch]https://bugzilla.redhat.com/show_bug.cgi?id=1994640
- [Other]https://lists.debian.org/debian-lts-announce/2021/09/msg00000.html
- [Other]https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html
- [Other]https://security.gentoo.org/glsa/202208-27
- [Other]https://security.netapp.com/advisory/ntap-20210923-0006/
- [Other]https://www.debian.org/security/2021/dsa-4980
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