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A flaw was found in the USB redirector device emulation of QEMU in versions prior to 6.1.0-rc2. It occurs when dropping packets during a bulk transfer from a SPICE client due to the packet queue being full. A malicious SPICE client could use this flaw to make QEMU call free() with faked heap chunk metadata, resulting in a crash of QEMU or potential code execution with the privileges of the QEMU process on the host.
NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.
Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.
NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.
Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.
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OR
*cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* versions up to (excluding) 6.1.0
*cpe:2.3:a:qemu:qemu:6.1.0:-:*:*:*:*:*:*
*cpe:2.3:a:qemu:qemu:6.1.0:rc1:*:*:*:*:*:*
OR
*cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* versions up to (excluding) 6.1.0
*cpe:2.3:a:qemu:qemu:6.1.0:rc1:*:*:*:*:*:*
Modified Analysis by NIST10/25/2022 4:28:11 PM
Action
Type
Old Value
New Value
Added
CPE Configuration
OR
*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:*:*:*:*:*:*:*
Changed
Reference Type
https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html No Types Assigned
https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html Mailing List, Third Party Advisory
Changed
Reference Type
https://security.gentoo.org/glsa/202208-27 No Types Assigned
https://security.gentoo.org/glsa/202208-27 Third Party Advisory
OR
*cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* versions up to (excluding) 6.1.0
*cpe:2.3:a:qemu:qemu:6.1.0:-:*:*:*:*:*:*
*cpe:2.3:a:qemu:qemu:6.1.0:rc1:*:*:*:*:*:*
Added
CPE Configuration
OR
*cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:-:*:*:*
*cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:advanced_virtualization:*:*:*
Added
CVSS V2
NIST (AV:N/AC:L/Au:S/C:P/I:P/A:P)
Added
CVSS V3.1
NIST AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Added
CWE
NIST CWE-763
Changed
Reference Type
https://bugzilla.redhat.com/show_bug.cgi?id=1989651 No Types Assigned
https://bugzilla.redhat.com/show_bug.cgi?id=1989651 Issue Tracking, Patch, Third Party Advisory
Quick Info
CVE Dictionary Entry: CVE-2021-3682 NVD
Published Date: 08/05/2021 NVD
Last Modified: 03/31/2023
Source: Red Hat, Inc.