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CVE-2022-48942

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: hwmon: Handle failure to register sensor with thermal zone correctly If an attempt is made to a sensor with a thermal zone and…

Published Aug 22, 2024CWE-476EPSS 0.21%

Overview

CVE-2022-48942 is a medium-severity vulnerability. It was published on August 22, 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:

hwmon: Handle failure to register sensor with thermal zone correctly

If an attempt is made to a sensor with a thermal zone and it fails,

the call to devm_thermal_zone_of_sensor_register() may return -ENODEV.

This may result in crashes similar to the following.

Unable to handle kernel NULL pointer dereference at virtual address 00000000000003cd

...

Internal error: Oops: 96000021 [#1] PREEMPT SMP

...

pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)

pc : mutex_lock+0x18/0x60

lr : thermal_zone_device_update+0x40/0x2e0

sp : ffff800014c4fc60

x29: ffff800014c4fc60 x28: ffff365ee3f6e000 x27: ffffdde218426790

x26: ffff365ee3f6e000 x25: 0000000000000000 x24: ffff365ee3f6e000

x23: ffffdde218426870 x22: ffff365ee3f6e000 x21: 00000000000003cd

x20: ffff365ee8bf3308 x19: ffffffffffffffed x18: 0000000000000000

x17: ffffdde21842689c x16: ffffdde1cb7a0b7c x15: 0000000000000040

x14: ffffdde21a4889a0 x13: 000000000000022

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/1b5f517cca36292076d9e38fa6e33a257703e62eRefgit.kernel.org/stable/c/7efe8499cb90651c540753f4269d2d43ede14223Refgit.kernel.org/stable/c/8a1969e14ad93663f9a3ed02ccc2138da9956a0eRefgit.kernel.org/stable/c/962b2a3188bfa5388756ffbc47dfa5ff59cb8011

How CyberStrike helps

Frequently asked questions

What is CVE-2022-48942?

CVE-2022-48942 is a medium-severity vulnerability. It was published on August 22, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-48942?

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-2022-48942?

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-2022-48942?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-48942 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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