GSD-2022-1007644 xfrm: Update ipcomp_scratches with NULL when freed

Not scored Published

A use-after-free vulnerability in the Linux kernel's xfrm IPcomp subsystem 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-2022-1007644?

GSD-2022-1007644 is an use after free vulnerability in Kernel, published on 14 Nov 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

xfrm: Update ipcomp_scratches with NULL when freed

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 v4.9.331 by commit debca61df6bc2f65e020656c9c5b878d6b38d30f. For more details please see the references link.

Which versions are affected by GSD-2022-1007644?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2022-1007644?

No fix has been published for GSD-2022-1007644 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is GSD-2022-1007644 being exploited?

There is no known exploitation of GSD-2022-1007644 in the wild and no public exploit code.

Sources

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