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CVE-2021-3682
Published: Aug 5, 2021
Modified: Aug 3, 2024
PUBLISHED
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.
| Vendor | Product | Versions |
|---|---|---|
n/a | QEMU | affected qemu 6.1.0-rc2 |
Weaknesses (CWE)
References
https://bugzilla.redhat.com/show_bug.cgi?id=1989651
x_refsource_MISC
https://security.netapp.com/advisory/ntap-20210902-0006/
x_refsource_CONFIRM
[debian-lts-announce] 20210902 [SECURITY] [DLA 2753-1] qemu security update
mailing-list
x_refsource_MLIST
DSA-4980
vendor-advisory
x_refsource_DEBIAN
GLSA-202208-27
vendor-advisory
x_refsource_GENTOO
[debian-lts-announce] 20220905 [SECURITY] [DLA 3099-1] qemu security update
mailing-list
x_refsource_MLIST
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