CVE-2022-41858 Null dereference in Linux kernel

High 7.1 Published Updated

An attacker can crash the system or leak kernel information via a NULL pointer dereference in the Linux kernel slip driver.

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-2022-41858?

CVE-2022-41858 is a high-severity vulnerability in Linux kernel, published on 17 Jan 2023. 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 Linux kernel. A NULL pointer dereference may occur while a slip driver is in progress to detach in sl_tx_timeout in drivers/net/slip/slip.c. This issue could allow an attacker to crash the system or leak internal kernel information.

Weakness: CWE-476, CWE-416

Which versions are affected by CVE-2022-41858?

It affects 2 products.

Products include Linux kernel, Netapp Hci Baseboard Management Controller.

How do I fix CVE-2022-41858?

Apply the vendor's patch.

Is CVE-2022-41858 being exploited?

There is no known exploitation of CVE-2022-41858 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as AZL-13051, DEBIAN-CVE-2022-41858, GHSA-5r4m-496r-7wqm, UBUNTU-CVE-2022-41858.

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