CVE-2023-22995 : What You Need to Know

This is a detailed analysis of CVE-2023-22995 - a vulnerability found in the Linux kernel.

Understanding CVE-2023-22995

This section will provide insights into the nature and impact of CVE-2023-22995.

What is CVE-2023-22995?

CVE-2023-22995 is a vulnerability identified in the Linux kernel before version 5.17. The specific issue lies in an error path within dwc3_qcom_acpi_register_core in drivers/usb/dwc3/dwc3-qcom.c. This error path lacks certain platform_device_put and kfree calls, which could lead to potential security risks.

The Impact of CVE-2023-22995

The impact of this vulnerability could allow malicious actors to exploit the error path and potentially execute arbitrary code or trigger system crashes, leading to a denial of service (DoS) condition.

Technical Details of CVE-2023-22995

This section will delve into the technical aspects of CVE-2023-22995.

Vulnerability Description

The vulnerability in dwc3_qcom_acpi_register_core in the Linux kernel before version 5.17 arises due to the lack of proper platform_device_put and kfree calls in the error path. This oversight could be exploited by attackers to compromise the system.

Affected Systems and Versions

All systems running Linux kernel versions prior to 5.17 are affected by CVE-2023-22995. It is crucial for users to check and update their kernel versions to mitigate this vulnerability.

Exploitation Mechanism

Attackers can potentially exploit this vulnerability by crafting malicious inputs to trigger the error path in dwc3_qcom_acpi_register_core. By exploiting this flaw, they could gain unauthorized access or disrupt system operations.

Mitigation and Prevention

In mitigating CVE-2023-22995, it is essential to take immediate actions to secure affected systems and prevent potential exploitation.

Immediate Steps to Take

Update the Linux kernel to version 5.17 or later to eliminate the vulnerability.
Monitor official security advisories and patches from Linux distributions for updates regarding this issue.

Long-Term Security Practices

Implement regular security updates and patches to ensure system resilience against known vulnerabilities.
Employ network segmentation and access controls to limit the impact of potential security breaches.

Patching and Updates

Stay informed about security updates released by the Linux kernel maintainers and promptly apply them to safeguard your systems.
Conduct regular vulnerability assessments and security audits to identify and address any potential weaknesses in your infrastructure.