CVE-2022-3107 Null dereference in Kernel

Medium 5.5 Published Updated

A missing return value check in the Linux kernel's Hyper-V network driver can lead to a null pointer dereference, causing a denial of service.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2022-3107?

CVE-2022-3107 is a medium-severity vulnerability in Linux kernel, published on 14 Dec 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

An issue was discovered in the Linux kernel through 5.16-rc6. netvsc_get_ethtool_stats in drivers/net/hyperv/netvsc_drv.c lacks check of the return value of kvmalloc_array() and will cause the null pointer dereference.

Weakness: CWE-476

Which versions are affected by CVE-2022-3107?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2022-3107?

Apply the vendor's patch.

Is CVE-2022-3107 being exploited?

There is no known exploitation of CVE-2022-3107 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as AZL-11608, DEBIAN-CVE-2022-3107, GHSA-r839-rgcg-37rj, UBUNTU-CVE-2022-3107.

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