CVE-2022-26354 Memory corruption in qemu-kvm

Low 3.2 Published Updated

A memory leak in QEMU's vhost-vsock device can lead to unexpected results and potential denial of service due to improper memory handling.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2022-26354?

CVE-2022-26354 is a low-severity memory corruption vulnerability in Debian Debian Linux, published on 16 Mar 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A flaw was found in the vhost-vsock device of QEMU. In case of error, an invalid element was not detached from the virtqueue before freeing its memory, leading to memory leakage and other unexpected results. Affected QEMU versions <= 6.2.0.

Weakness: CWE-772

Which versions are affected by CVE-2022-26354?

It affects 2 products.

Products include Debian Debian Linux, Qemu Qemu.

How do I fix CVE-2022-26354?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2022-26354 being exploited?

There is no known exploitation of CVE-2022-26354 in the wild and no public exploit code.

All Debian Debian Linux vulnerabilities

Sources

Also known as AZL-35158, AZL-9095, DEBIAN-CVE-2022-26354, GHSA-jmf2-6wvc-36fj, UBUNTU-CVE-2022-26354.

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