GSD-2022-1000013 net: fix use-after-free in tw_timer_handler

Not scored Published

A use-after-free vulnerability in the Linux kernel's network timer handler 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-2022-1000013?

GSD-2022-1000013 is an use after free vulnerability in Kernel, published on 10 Jan 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

net: fix use-after-free in tw_timer_handler

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 v4.9.296 by commit e73164e89d1be561228a4534e1091369ee4ba41a, it was introduced in version v2.6.27 by commit 61a7e26028b94805fd686a6dc9dbd9941f8f19b0. For more details please see the references link.

Which versions are affected by GSD-2022-1000013?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2022-1000013?

No fix has been published for GSD-2022-1000013 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-2022-1000013 being exploited?

There is no known exploitation of GSD-2022-1000013 in the wild and no public exploit code.

Sources

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