CVE-2021-3607
Medium
Description
An integer overflow was found in the QEMU implementation of VMWare's paravirtual RDMA device in versions prior to 6.1.0. The issue occurs while handling a "PVRDMA_REG_DSRHIGH" write from the guest due to improper input validation. This flaw allows a privileged guest user to make QEMU allocate a large amount of memory, resulting in a denial of service. The highest threat from this vulnerability is to system availability.
SeverityMedium
CVSS6.0
Exploit probability—
Product
Qemu
PublishedFeb 24, 2022
First seenFeb 24, 2022
Weakness typeCWE-190Integer overflow
How to fix
Update
- qemu qemu6.1.0 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| qemu qemu | v < 6.1.0 | 6.1.0 |
| debian debian_linux | 10.0 | — |
| fedoraproject fedora | 34 | — |
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