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CVE-2021-3682 Detail

Description

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.


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://bugzilla.redhat.com/show_bug.cgi?id=1989651 Issue Tracking  Patch  Third Party Advisory 
https://bugzilla.redhat.com/show_bug.cgi?id=1989651 Issue Tracking  Patch  Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2021/09/msg00000.html Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2021/09/msg00000.html Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2022/09/msg00008.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.gentoo.org/glsa/202208-27 Third Party Advisory 
https://security.netapp.com/advisory/ntap-20210902-0006/ Third Party Advisory 
https://security.netapp.com/advisory/ntap-20210902-0006/ Third Party Advisory 
https://www.debian.org/security/2021/dsa-4980 Third Party Advisory 
https://www.debian.org/security/2021/dsa-4980 Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-763 Release of Invalid Pointer or Reference cwe source acceptance level NIST   Red Hat, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

12 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-3682
NVD Published Date:
08/05/2021
NVD Last Modified:
11/21/2024
Source:
Red Hat, Inc.