CVE-2023-29548 : Security Advisory and Response

A wrong lowering instruction in the ARM64 Ion compiler resulted in a wrong optimization result impacting various Mozilla products.

Understanding CVE-2023-29548

This CVE identifier highlights a vulnerability in Mozilla software that could allow attackers to exploit the affected systems.

What is CVE-2023-29548?

The vulnerability is due to a wrong lowering instruction in the ARM64 Ion compiler, leading to incorrect optimization results.

The Impact of CVE-2023-29548

This vulnerability affects multiple Mozilla products including Firefox, Focus for Android, Firefox ESR, Firefox for Android, and Thunderbird. Attackers could potentially exploit this vulnerability to execute arbitrary code.

Technical Details of CVE-2023-29548

This section delves into the specifics of the vulnerability, affected systems, and the exploitation mechanism.

Vulnerability Description

The vulnerability arises from a wrong lowering instruction in the ARM64 Ion compiler, resulting in incorrect optimization outcomes, which could be exploited by malicious actors.

Affected Systems and Versions

Mozilla products impacted include Firefox (< 112), Focus for Android (< 112), Firefox ESR (< 102.10), Firefox for Android (< 112), and Thunderbird (< 102.10).

Exploitation Mechanism

Attackers can exploit this vulnerability to potentially execute arbitrary code on systems running the affected versions of Mozilla products.

Mitigation and Prevention

Here, we outline steps to mitigate the risks associated with CVE-2023-29548 and prevent potential exploits.

Immediate Steps to Take

Users are advised to update their Mozilla products to the latest versions to mitigate the risk of exploitation. Regularly check for security advisories and apply patches promptly.

Long-Term Security Practices

Implementing robust security measures, such as network segmentation, user training on phishing awareness, and regularly updating security software, can enhance overall cybersecurity posture.

Patching and Updates

Mozilla has released patches to address this vulnerability. Users should ensure they apply these patches promptly to protect their systems from potential exploits.