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CVE-2022-48971

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Fix not cleanup led when bt_init fails bt_init() calls bt_leds_init() to register led, but if it fails later, bt_led…

Published Oct 21, 2024EPSS 0.24%

Overview

CVE-2022-48971 is a medium-severity vulnerability. It was published on October 21, 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:

Bluetooth: Fix not cleanup led when bt_init fails

bt_init() calls bt_leds_init() to register led, but if it fails later,

bt_leds_cleanup() is not called to unregister it.

This can cause panic if the argument "bluetooth-power" in text is freed

and then another led_trigger_register() tries to access it:

BUG: unable to handle page fault for address: ffffffffc06d3bc0

RIP: 0010:strcmp+0xc/0x30

Call Trace:

<TASK>

led_trigger_register+0x10d/0x4f0

led_trigger_register_simple+0x7d/0x100

bt_init+0x39/0xf7 [bluetooth]

do_one_initcall+0xd0/0x4e0

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/2c6cf0afc3856359e620e96edd952457d258e16cRefgit.kernel.org/stable/c/2f3957c7eb4e07df944169a3e50a4d6790e1c744Refgit.kernel.org/stable/c/5ecf7cd6fde5e72c87122084cf00d63e35d8dd9fRefgit.kernel.org/stable/c/8a66c3a94285552f6a8e45d73b34ebbad11d388bRefgit.kernel.org/stable/c/e7b950458156d410509a08c41930b75e72985938Refgit.kernel.org/stable/c/edf7284a98296369dd0891a0457eec37df244873

How CyberStrike helps

Frequently asked questions

What is CVE-2022-48971?

CVE-2022-48971 is a medium-severity vulnerability. It was published on October 21, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-48971?

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-2022-48971?

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-2022-48971?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-48971 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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