GSD-2022-1006966 fbdev: smscufx: Fix several use-after-free bugs

Not scored Published

Local attackers can exploit use-after-free bugs in the smscufx framebuffer driver to escalate privileges or crash the system.

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-2022-1006966?

GSD-2022-1006966 is an use after free vulnerability in Kernel, published on 14 Nov 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

fbdev: smscufx: Fix several use-after-free bugs

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 v5.15.77 by commit cc6a7249842fceda7574ceb63275a2d5e99d2862. For more details please see the references link.

Which versions are affected by GSD-2022-1006966?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2022-1006966?

No fix has been published for GSD-2022-1006966 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is GSD-2022-1006966 being exploited?

There is no known exploitation of GSD-2022-1006966 in the wild and no public exploit code.

Sources

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