GSD-2023-1001533 media: dvb-core: Fix double free in dvb_register_device()

Not scored Published

A double free vulnerability in the Linux kernel's DVB core allows local attackers to potentially execute code or escalate privileges.

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

What is GSD-2023-1001533?

GSD-2023-1001533 is an use after free vulnerability in 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

media: dvb-core: Fix double free in dvb_register_device()

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 v4.9.337 by commit 0588b12c418c3e4f927ced11f27b02ef4a5bfb07, it was introduced in version v4.9.195 by commit 9db28659aa893c68f162b11fd63bb7f6a713e52f. For more details please see the references link.

Which versions are affected by GSD-2023-1001533?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2023-1001533?

No fix has been published for GSD-2023-1001533 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-2023-1001533 being exploited?

There is no known exploitation of GSD-2023-1001533 in the wild and no public exploit code.

Sources

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