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CVE-2023-52619

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: pstore/ram: Fix crash when setting number of cpus to an odd number When the number of cpu cores is adjusted to 7 or other odd n…

Published Mar 18, 2024EPSS 0.24%

Overview

CVE-2023-52619 is a medium-severity vulnerability. It was published on March 18, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

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

pstore/ram: Fix crash when setting number of cpus to an odd number

When the number of cpu cores is adjusted to 7 or other odd numbers,

the zone size will become an odd number.

The address of the zone will become:

addr of zone0 = BASE

addr of zone1 = BASE + zone_size

addr of zone2 = BASE + zone_size*2

...

The address of zone1/3/5/7 will be mapped to non-alignment va.

Eventually crashes will occur when accessing these va.

So, use ALIGN_DOWN() to make sure the zone size is even

to avoid this bug.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/0593cfd321df9001142a9d2c58d4144917dff7eeRefgit.kernel.org/stable/c/2a37905d47bffec61e95d99f0c1cc5dc6377956cRefgit.kernel.org/stable/c/75b0f71b26b3ad833c5c0670109c0af6e021e86aRefgit.kernel.org/stable/c/8b69c30f4e8b69131d92096cb296dc1f217101e4Refgit.kernel.org/stable/c/a63e48cd835c34c38ef671d344cc029b1ea5bf10Refgit.kernel.org/stable/c/cd40e43f870cf21726b22487a95ed223790b3542Refgit.kernel.org/stable/c/d49270a04623ce3c0afddbf3e984cb245aa48e9cRefgit.kernel.org/stable/c/e9f6ac50890104fdf8194f2865680689239d30fbRefgit.kernel.org/stable/c/0593cfd321df9001142a9d2c58d4144917dff7eeRefgit.kernel.org/stable/c/2a37905d47bffec61e95d99f0c1cc5dc6377956c

How CyberStrike helps

Frequently asked questions

What is CVE-2023-52619?

CVE-2023-52619 is a medium-severity vulnerability. It was published on March 18, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2023-52619?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2023-52619?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2023-52619?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-52619 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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