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CVE-2022-48804

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: vt_ioctl: fix array_index_nospec in vt_setactivate array_index_nospec ensures that an out-of-bounds value is set to zero on the…

Published Jul 16, 2024CWE-191EPSS 0.31%

Overview

CVE-2022-48804 is a medium-severity vulnerability. It was published on July 16, 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:

vt_ioctl: fix array_index_nospec in vt_setactivate

array_index_nospec ensures that an out-of-bounds value is set to zero

on the transient path. Decreasing the value by one afterwards causes

a transient integer underflow. vsa.console should be decreased first

and then sanitized with array_index_nospec.

Kasper Acknowledgements: Jakob Koschel, Brian Johannesmeyer, Kaveh

Razavi, Herbert Bos, Cristiano Giuffrida from the VUSec group at VU

Amsterdam.

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/170325aba4608bde3e7d21c9c19b7bc266ac0885Refgit.kernel.org/stable/c/2a45a6bd1e6d651770aafff57ab3e1d3bb0b42e0Refgit.kernel.org/stable/c/61cc70d9e8ef5b042d4ed87994d20100ec8896d9Refgit.kernel.org/stable/c/6550bdf52846f85a2a3726a5aa0c7c4399f2fc02Refgit.kernel.org/stable/c/778302ca09498b448620edd372dc908bebf80bdfRefgit.kernel.org/stable/c/830c5aa302ec16b4ee641aec769462c37f802c90Refgit.kernel.org/stable/c/ae3d57411562260ee3f4fd5e875f410002341104Refgit.kernel.org/stable/c/ffe54289b02e9c732d6f04c8ebbe3b2d90d32118Refgit.kernel.org/stable/c/170325aba4608bde3e7d21c9c19b7bc266ac0885Refgit.kernel.org/stable/c/2a45a6bd1e6d651770aafff57ab3e1d3bb0b42e0

How CyberStrike helps

Frequently asked questions

What is CVE-2022-48804?

CVE-2022-48804 is a medium-severity vulnerability. It was published on July 16, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-48804?

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-2022-48804?

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-2022-48804?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-48804 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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