GSD-2022-1005384 arm64: set UXN on swapper page tables

Not scored Published

Missing UXN bit on swapper page tables in arm64 Linux kernel allows local attackers to potentially escalate privileges.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is GSD-2022-1005384?

GSD-2022-1005384 is a vulnerability in Kernel, published on 16 Sep 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

arm64: set UXN on swapper page tables

This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.19.1 by commit 9283e708a9b8529e7aafac9ab5c5c79a9fab8846, it was introduced in version v5.13 by commit 18107f8a2df6bf1c6cac8d0713f757f866d5af51. For more details please see the references link.

Which versions are affected by GSD-2022-1005384?

1 open source package ship an affected version, including Kernel.

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2022-1005384?

No fix has been published for GSD-2022-1005384 yet. Limit exposure of the affected software until one is available.

Is GSD-2022-1005384 being exploited?

There is no known exploitation of GSD-2022-1005384 in the wild and no public exploit code.

Sources

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