CVE-2022-36123 Privilege escalation in n/a

High 7.8 Published Updated

A missing .bss clear operation in the Linux kernel allows Xen PV guest users to escalate privileges or cause 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-2022-36123?

CVE-2022-36123 is a high-severity vulnerability in Linux kernel, published on 29 Jul 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The Linux kernel before 5.18.13 lacks a certain clear operation for the block starting symbol (.bss). This allows Xen PV guest OS users to cause a denial of service or gain privileges.

Which versions are affected by CVE-2022-36123?

It affects 6 products.

Products include Linux kernel, Netapp H300s Firmware, Netapp H410c Firmware, Netapp H410s Firmware, Netapp H500s Firmware, Netapp H700s Firmware.

How do I fix CVE-2022-36123?

Upgrade to a fixed version.

Is CVE-2022-36123 being exploited?

There is no known exploitation of CVE-2022-36123 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as AZL-10451, DEBIAN-CVE-2022-36123, GHSA-6339-6rqv-9985, UBUNTU-CVE-2022-36123.

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