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.
No analysis available yet.
Remediation
No remediation available yet.
Tracking
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Advisories
| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-2753-1 | qemu security update |
Debian DLA |
DLA-3099-1 | qemu security update |
Debian DSA |
DSA-4980-1 | qemu security update |
EUVD |
EUVD-2021-26972 | 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. |
Ubuntu USN |
USN-5307-1 | QEMU vulnerabilities |
Ubuntu USN |
USN-5772-1 | QEMU vulnerabilities |
References
History
No history.
Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2024-08-03T17:01:07.707Z
Reserved: 2021-08-04T00:00:00.000Z
Link: CVE-2021-3682
No data.
Status : Modified
Published: 2021-08-05T20:15:09.963
Modified: 2024-11-21T06:22:09.070
Link: CVE-2021-3682
OpenCVE Enrichment
No data.
Weaknesses
Debian DLA
Debian DSA
EUVD
Ubuntu USN