GSD-2022-1003749 um: Fix out-of-bounds read in LDT setup

Not scored Published

An out-of-bounds read in the Linux Kernel LDT setup was fixed, potentially leading to memory corruption or information disclosure.

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

What is GSD-2022-1003749?

GSD-2022-1003749 is a memory corruption vulnerability in Kernel, published on 28 Jun 2022.

Official description

um: Fix out-of-bounds read in LDT setup

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 v5.4.198 by commit 9caad70819aef3431abaf73ba5163b55b161aba0, it was introduced in version v2.6.15 by commit 858259cf7d1c443c836a2022b78cb281f0a9b95e. For more details please see the references link.

Which versions are affected by GSD-2022-1003749?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2022-1003749?

No fix has been published for GSD-2022-1003749 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-2022-1003749 being exploited?

There is no known exploitation of GSD-2022-1003749 in the wild and no public exploit code.

Sources

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