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CVE-2023-52475

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: Input: powermate - fix use-after-free in powermate_config_complete syzbot has found a use-after-free bug [1] in the powermate d…

Published Feb 29, 2024CWE-416EPSS 0.24%

Overview

CVE-2023-52475 is a high-severity vulnerability. It was published on February 29, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. 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:

Input: powermate - fix use-after-free in powermate_config_complete

syzbot has found a use-after-free bug [1] in the powermate driver. This

happens when the device is disconnected, which leads to a memory free from

the powermate_device struct. When an asynchronous control message

completes after the kfree and its callback is invoked, the lock does not

exist anymore and hence the bug.

Use usb_kill_urb() on pm->config to cancel any in-progress requests upon

device disconnection.

[1] https://syzkaller.appspot.com/bug?extid=0434ac83f907a1dbdd1e

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/2efe67c581a2a6122b328d4bb6f21b3f36f40d46Refgit.kernel.org/stable/c/5aa514100aaf59868d745196258269a16737c7bdRefgit.kernel.org/stable/c/5c15c60e7be615f05a45cd905093a54b11f461bcRefgit.kernel.org/stable/c/67cace72606baf1758fd60feb358f4c6be92e1ccRefgit.kernel.org/stable/c/6a4a396386404e62fb59bc3bde48871a64a82b4fRefgit.kernel.org/stable/c/8677575c4f39d65bf0d719b5d20e8042e550ccb9Refgit.kernel.org/stable/c/cd2fbfd8b922b7fdd50732e47d797754ab59cb06Refgit.kernel.org/stable/c/e528b1b9d60743e0b26224e3fe7aa74c24b8b2f8Refgit.kernel.org/stable/c/2efe67c581a2a6122b328d4bb6f21b3f36f40d46Refgit.kernel.org/stable/c/5aa514100aaf59868d745196258269a16737c7bd

How CyberStrike helps

Frequently asked questions

What is CVE-2023-52475?

CVE-2023-52475 is a high-severity vulnerability. It was published on February 29, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2023-52475?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2023-52475?

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-2023-52475?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-52475 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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