CVE-2022-3165 Integer overflow in QEMU

Medium 6.5 Published Updated

A malicious VNC client can cause QEMU to become unresponsive via an integer underflow in ClientCutText processing, leading to denial of service.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2022-3165?

CVE-2022-3165 is a medium-severity vulnerability in Fedoraproject Fedora, published on 17 Oct 2022. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

An integer underflow issue was found in the QEMU VNC server while processing ClientCutText messages in the extended format. A malicious client could use this flaw to make QEMU unresponsive by sending a specially crafted payload message, resulting in a denial of service.

Weakness: CWE-191

Which versions are affected by CVE-2022-3165?

It affects 2 products.

Products include Fedoraproject Fedora, Qemu Qemu.

How do I fix CVE-2022-3165?

Apply the vendor's patch.

Is CVE-2022-3165 being exploited?

There is no known exploitation of CVE-2022-3165 in the wild and no public exploit code.

All Fedoraproject Fedora vulnerabilities

Sources

Also known as AZL-11222, AZL-35160, DEBIAN-CVE-2022-3165, GHSA-3wph-8799-87r7, OESA-2022-2024, UBUNTU-CVE-2022-3165.

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