GSD-2022-1007291 mISDN: fix use-after-free bugs in l1oip timer handlers

Not scored Published

Use-after-free bugs in mISDN l1oip timer handlers allow potential code execution or denial of service in the Linux kernel.

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

What is GSD-2022-1007291?

GSD-2022-1007291 is an use after free vulnerability in Kernel, published on 14 Nov 2022.

Official description

mISDN: fix use-after-free bugs in l1oip timer handlers

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 v5.10.150 by commit 2a1d0363208528a3bacbc2c37264d60182efd482, it was introduced in version v2.6.27 by commit 3712b42d4b1bec29a4232a6673bf2e6dcc5faa68. For more details please see the references link.

Which versions are affected by GSD-2022-1007291?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2022-1007291?

No fix has been published for GSD-2022-1007291 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-2022-1007291 being exploited?

There is no known exploitation of GSD-2022-1007291 in the wild and no public exploit code.

Sources

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