GSD-2021-1001004 net: ll_temac: Fix TX BD buffer overwrite

Not scored Published

A buffer overwrite vulnerability in the Linux kernel's ll_temac network driver allows attackers to potentially execute code or cause a denial of service.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is GSD-2021-1001004?

GSD-2021-1001004 is a memory corruption vulnerability in Kernel, published on 30 Jun 2021. An attacker can exploit it over the internet without logging in, 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 v5.10.46 by commit cfe403f209b11fad123a882100f0822a52a7630f, it was introduced in version v5.6 by commit 84823ff80f7403752b59e00bb198724100dc611c. For more details please see the references link.

Which versions are affected by GSD-2021-1001004?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2021-1001004?

No fix has been published for GSD-2021-1001004 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-2021-1001004 being exploited?

There is no known exploitation of GSD-2021-1001004 in the wild and no public exploit code.

Sources

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