CVE-2023-30772 : Vulnerability Insights and Analysis

A race condition and resultant use-after-free vulnerability have been identified in the Linux kernel before version 6.2.9. This vulnerability exists in the

drivers/power/supply/da9150-charger.c

file and can be exploited by physically proximate attackers unplugging a device.

Understanding CVE-2023-30772

This section will dive into the details of the vulnerability, its impact, technical aspects, and mitigation strategies.

What is CVE-2023-30772?

The CVE-2023-30772 vulnerability is a race condition and use-after-free flaw in the Linux kernel, specifically in the

da9150-charger.c

file within the power supply drivers. Attackers in physical proximity can trigger this vulnerability by unplugging a device.

The Impact of CVE-2023-30772

Exploitation of this vulnerability could lead to a denial of service (DoS) condition, system crashes, or potentially arbitrary code execution. Attackers with physical access to the device can take advantage of this flaw.

Technical Details of CVE-2023-30772

Let's explore the technical aspects of CVE-2023-30772 in more detail.

Vulnerability Description

The vulnerability arises due to a race condition and subsequent use-after-free scenario within the

da9150-charger.c

file of the Linux kernel, before version 6.2.9.

Affected Systems and Versions

All systems running Linux kernel versions prior to 6.2.9 are vulnerable to CVE-2023-30772. It is crucial to update to the patched version to mitigate the risk.

Exploitation Mechanism

Physically proximate attackers can exploit this vulnerability by unplugging a device, triggering the race condition and causing a use-after-free scenario that could lead to system compromise.

Mitigation and Prevention

To safeguard your systems from CVE-2023-30772, follow these mitigation strategies:

Immediate Steps to Take

Update your Linux kernel to version 6.2.9 or later to apply the necessary patches.
Implement strict physical security measures to prevent unauthorized access to devices.

Long-Term Security Practices

Regularly update your system and apply security patches promptly.
Monitor security mailing lists and advisories for any future vulnerabilities.

Patching and Updates

Stay informed about the latest security updates for the Linux kernel and prioritize patching to ensure the protection of your systems.