GSD-2021-1001972 comedi: vmk80xx: fix transfer-buffer overflows

Not scored Published

Buffer overflow in the vmk80xx kernel driver allows local attackers to cause denial of service or execute arbitrary code.

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-2021-1001972?

GSD-2021-1001972 is a memory corruption vulnerability in Kernel, published on 14 Nov 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

comedi: vmk80xx: fix transfer-buffer overflows

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 v4.14.255 by commit 40d2a7e278e2e7c0a5fd7e997e7eb63945bf93f7, it was introduced in version v2.6.31 by commit 985cafccbf9b7f862aa1c5ee566801e18b5161fb. For more details please see the references link.

Which versions are affected by GSD-2021-1001972?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2021-1001972?

No fix has been published for GSD-2021-1001972 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is GSD-2021-1001972 being exploited?

There is no known exploitation of GSD-2021-1001972 in the wild and no public exploit code.

Sources

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