CVE-2023-6932 : Vulnerability Insights and Analysis

This CVE-2023-6932 relates to a use-after-free vulnerability in the Linux kernel's ipv4: igmp component, allowing for local privilege escalation.

Understanding CVE-2023-6932

This vulnerability poses a risk of privilege escalation through a race condition that can lead to a timer being mistakenly registered on a freed object, causing an exploitable scenario.

What is CVE-2023-6932?

CVE-2023-6932 is a use-after-free vulnerability in the Linux kernel's ipv4: igmp component, which can be exploited to achieve local privilege escalation. It is crucial to take immediate action to address this security flaw.

The Impact of CVE-2023-6932

The impact of CVE-2023-6932 is categorized under CAPEC-233 as Privilege Escalation. This vulnerability can lead to unauthorized users gaining escalated privileges on affected systems.

Technical Details of CVE-2023-6932

This section provides specific technical details related to the CVE-2023-6932 vulnerability.

Vulnerability Description

The use-after-free vulnerability in the Linux kernel's ipv4: igmp component allows for local privilege escalation by exploiting a race condition. This can lead to unauthorized access and control of the affected system.

Affected Systems and Versions

The Linux Kernel version 2.6.12 up to version 6.7 (exclusive) is affected by this vulnerability. It is crucial to check and update systems within this range to mitigate the risks associated with CVE-2023-6932.

Exploitation Mechanism

The exploitation of CVE-2023-6932 involves triggering a race condition to manipulate the timer registration process on a freed object, thereby escalating privileges locally on the compromised system.

Mitigation and Prevention

To safeguard systems from the risks associated with CVE-2023-6932, prompt mitigation and prevention measures are necessary.

Immediate Steps to Take

Upgrade past commit e2b706c691905fe78468c361aaabc719d0a496f1 to address the vulnerability and enhance system security.
Monitor system activities closely for any signs of unauthorized privilege escalation.

Long-Term Security Practices

Implement secure coding practices to prevent similar vulnerabilities in the future.
Regularly update and patch the Linux kernel to address known security issues.

Patching and Updates

Refer to the provided links to access the necessary patches and updates to secure systems against CVE-2023-6932. Stay informed about security advisories and apply patches promptly to mitigate risks.

By understanding the technical details and impact of CVE-2023-6932, organizations can take proactive steps to enhance their system security and protect against potential threats.