GSD-2023-1002303 net: use a bounce buffer for copying skb->mark

Not scored Published

A memory corruption vulnerability in the Linux kernel network stack allows attackers to potentially execute code or escalate privileges via crafted network packets.

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-2023-1002303?

GSD-2023-1002303 is a memory corruption vulnerability in Kernel, published on 7 Mar 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

net: use a bounce buffer for copying skb->mark

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 v6.1.13 by commit 863a7de987f02a901bf215509276a7de0370e0f9, it was introduced in version v5.19 by commit 6fd1d51cfa253b5ee7dae18d7cf1df830e9b6137. For more details please see the references link.

Which versions are affected by GSD-2023-1002303?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2023-1002303?

No fix has been published for GSD-2023-1002303 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-2023-1002303 being exploited?

There is no known exploitation of GSD-2023-1002303 in the wild and no public exploit code.

Sources

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