GSD-2022-1000318 net: fix a memleak when uncloning an skb dst and its metadata

Not scored Published

A memory leak in the Linux kernel network stack allows remote attackers to cause denial of service by triggering uncloning of skb dst metadata.

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-2022-1000318?

GSD-2022-1000318 is a memory corruption vulnerability in Kernel, published on 27 Feb 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

net: fix a memleak when uncloning an skb dst and its metadata

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 v4.19.230 by commit 0be943916d781df2b652793bb2d3ae4f9624c10a, it was introduced in version v4.3 by commit fc4099f17240767554ff3a73977acb78ef615404. For more details please see the references link.

Which versions are affected by GSD-2022-1000318?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2022-1000318?

No fix has been published for GSD-2022-1000318 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-2022-1000318 being exploited?

There is no known exploitation of GSD-2022-1000318 in the wild and no public exploit code.

Sources

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