CVE-2021-20203
Low
Description
An integer overflow issue was found in the vmxnet3 NIC emulator of the QEMU for versions up to v5.2.0. It may occur if a guest was to supply invalid values for rx/tx queue size or other NIC parameters. A privileged guest user may use this flaw to crash the QEMU process on the host resulting in DoS scenario.
SeverityLow
CVSS3.2
Exploit probability—
Product
Qemu
PublishedFeb 25, 2021
First seenFeb 25, 2021
Weakness typeCWE-190Integer overflow
How to fix
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| qemu qemu | v ≤ 5.2.0 | — |
| fedoraproject fedora | 33 | — |
| debian debian_linux | 9.0, 10.0 | — |
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