GSD-2021-1001362 usb: max-3421: Prevent corruption of freed memory

Not scored Published

A use-after-free vulnerability in the Linux kernel's MAX3421 USB driver allows local attackers to cause memory corruption, potentially leading to code execution or system crashes.

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-2021-1001362?

GSD-2021-1001362 is an use after free vulnerability in Kernel, published on 3 Aug 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

usb: max-3421: Prevent corruption of freed memory

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 v4.19.199 by commit 51fc12f4d37622fa0c481604833f98f11b1cac4f, it was introduced in version v3.16 by commit 2d53139f31626bad6f8983d8e519ddde2cbba921. For more details please see the references link.

Which versions are affected by GSD-2021-1001362?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2021-1001362?

No fix has been published for GSD-2021-1001362 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-2021-1001362 being exploited?

There is no known exploitation of GSD-2021-1001362 in the wild and no public exploit code.

Sources

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