GSD-2021-1000932 net: ll_temac: Fix TX BD buffer overwrite

Not scored Published

A buffer overwrite vulnerability in the Linux kernel's ll_temac network driver could allow 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-2021-1000932?

GSD-2021-1000932 is a memory corruption vulnerability in Kernel, published on 30 Jun 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

net: ll_temac: Fix TX BD buffer overwrite

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 v5.4.128 by commit b6c0ab11c88fb016bfc85fa4f6f878f5f4263646, it was introduced in version v5.4.27 by commit 0c050d6554757f1be861b9f288406989c4053449. For more details please see the references link.

Which versions are affected by GSD-2021-1000932?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2021-1000932?

No fix has been published for GSD-2021-1000932 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-2021-1000932 being exploited?

There is no known exploitation of GSD-2021-1000932 in the wild and no public exploit code.

Sources

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