GSD-2022-1000042 i2c: validate user data in compat ioctl

Not scored Published

A missing validation in the Linux kernel i2c compat ioctl allows local attackers to potentially escalate privileges or execute code.

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

What is GSD-2022-1000042?

GSD-2022-1000042 is a missing authorization vulnerability in Kernel, published on 10 Jan 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

i2c: validate user data in compat ioctl

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 v5.10.90 by commit 8d31cbab4c295d7010ebb729e9d02d0e9cece18f, it was introduced in version v4.15 by commit 7d5cb45655f2e9e37ef75d18f50c0072ef14a38b. For more details please see the references link.

Which versions are affected by GSD-2022-1000042?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2022-1000042?

No fix has been published for GSD-2022-1000042 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is GSD-2022-1000042 being exploited?

There is no known exploitation of GSD-2022-1000042 in the wild and no public exploit code.

Sources

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