CVE-2023-25012 : Vulnerability Insights and Analysis

This CVE record pertains to a vulnerability found in the Linux kernel through version 6.1.9. The issue involves a Use-After-Free vulnerability in

bigben_remove

within the file

drivers/hid/hid-bigbenff.c

. The vulnerability arises due to LED controllers remaining registered for too long when interacting with a crafted USB device.

Understanding CVE-2023-25012

This section will delve into the details of CVE-2023-25012, explaining what the vulnerability entails, its potential impact, technical details, and mitigation strategies.

What is CVE-2023-25012?

CVE-2023-25012 is a Use-After-Free vulnerability discovered within the Linux kernel up to version 6.1.9. Specifically, the flaw occurs in the

bigben_remove

function in

drivers/hid/hid-bigbenff.c

. Attackers can exploit this vulnerability by utilizing a malicious USB device to manipulate LED controllers in a manner that leads to a Use-After-Free scenario.

The Impact of CVE-2023-25012

This vulnerability can be exploited by malicious actors to trigger a Use-After-Free condition in the Linux kernel. Successful exploitation of this vulnerability could result in potential system crashes, privilege escalation, or the execution of arbitrary code by an attacker.

Technical Details of CVE-2023-25012

Understanding the technical aspects of CVE-2023-25012 can provide insights into how the vulnerability operates, the systems affected, and the exploitation mechanism.

Vulnerability Description

The Use-After-Free vulnerability in

bigben_remove

in

drivers/hid/hid-bigbenff.c

allows an attacker to manipulate LED controllers through a crafted USB device, leading to a potentially exploitable scenario within the Linux kernel.

Affected Systems and Versions

The vulnerability impacts the Linux kernel up to version 6.1.9. Systems utilizing this version of the kernel may be vulnerable to exploitation if exposed to malicious USB devices manipulating LED controllers.

Exploitation Mechanism

By leveraging a specially crafted USB device, attackers can exploit the flaw in

bigben_remove

to keep LED controllers registered for an extended period, potentially leading to a Use-After-Free condition within the Linux kernel.

Mitigation and Prevention

Understanding how to mitigate and prevent CVE-2023-25012 is crucial in safeguarding systems from potential exploitation and its associated risks.

Immediate Steps to Take

It is recommended to apply security updates and patches provided by Linux distributions promptly. System administrators should monitor for updates related to the Linux kernel to address this vulnerability and ensure system integrity.

Long-Term Security Practices

Implementing robust security measures, including regular system updates, security monitoring, and employing best practices in device connectivity, can help reduce the risk of exploitation from similar vulnerabilities in the future.

Patching and Updates

Users are advised to stay informed about security advisories related to the Linux kernel, particularly those addressing CVE-2023-25012. Applying patches and updates as soon as they become available is essential in mitigating the risks associated with this vulnerability.