CVE-2021-3682
- State
- Published
- Severity
- Not scored
- Published
- Aug 5, 2021
- Updated
- Aug 3, 2024
- Reserved
- Aug 4, 2021
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.
Scores
The record has no CVSS score.
Weaknesses
Affected Products
| Product | Versions |
|---|---|
QEMUn/a |
|
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1989651
- https://security.netapp.com/advisory/ntap-20210902-0006/
- [debian-lts-announce] 20210902 [SECURITY] [DLA 2753-1] qemu security updatemailing-list
- DSA-4980vendor-advisory
- GLSA-202208-27vendor-advisory
- [debian-lts-announce] 20220905 [SECURITY] [DLA 3099-1] qemu security updatemailing-list
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