CVEvulnerability
CVE-2021-3713
7.4 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-08-25
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.4 HIGH — CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 4.6 MEDIUM — AV:L/AC:L/Au:N/C:P/I:P/A:P
- Weaknesses
- CWE-787
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.
Affected configurations
• qemu qemu (<= 6.1.0)
• debian debian linux 9.0
• debian debian linux 10.0
• debian debian linux 11.0
Related
Weakness · CWE (1)
- CWE-787 Out-of-bounds Write weakness
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1994640 Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/09/msg00000.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html Mailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202208-27 Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210923-0006/ Third Party Advisory
- https://www.debian.org/security/2021/dsa-4980 Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1994640 Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/09/msg00000.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html Mailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202208-27 Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210923-0006/ Third Party Advisory
- https://www.debian.org/security/2021/dsa-4980 Third Party Advisory