CVE-2023-52601 jfs: fix array-index-out-of-bounds in dbAdjTree

High 7.8 Published Updated

A missing bounds check in the JFS filesystem allows an attacker to cause a kernel crash via an out-of-bounds array access.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2023-52601?

CVE-2023-52601 is a high-severity vulnerability in Debian Debian Linux, published on 6 Mar 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In the Linux kernel, the following vulnerability has been resolved:

jfs: fix array-index-out-of-bounds in dbAdjTree

Currently there is a bound check missing in the dbAdjTree while accessing the dmt_stree. To add the required check added the bool is_ctl which is required to determine the size as suggest in the following commit. https://lore.kernel.org/linux-kernel-mentees/[email protected]/

Weakness: CWE-129

Which versions are affected by CVE-2023-52601?

It affects 2 products.

Products include Debian Debian Linux, Linux kernel.

How do I fix CVE-2023-52601?

Apply the vendor's patch.

Is CVE-2023-52601 being exploited?

There is no known exploitation of CVE-2023-52601 in the wild and no public exploit code.

All Debian Debian Linux vulnerabilities

Sources

Also known as AZL-53031, AZL-53117, BELL-CVE-2023-52601, DEBIAN-CVE-2023-52601, GHSA-vr4m-r8hq-rpgr, UBUNTU-CVE-2023-52601.

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