Mozilla Firefox and Firefox ESR Use-After-Free Vulnerability in JavaScript Engine Component

A use-after-free vulnerability has been identified in the JavaScript Engine component of Mozilla Firefox. This issue affects Firefox versions prior to 149 and Firefox ESR versions prior to 140.9. The vulnerability arises from improper memory management, which can potentially be exploited to manipulate memory in a way that leads to undefined behavior.

Impact

Exploitation of this vulnerability can cause a use-after-free condition, where the program continues to use a memory reference after it has been freed. This can lead to memory corruption, allowing for arbitrary code execution or other unintended behavior.

Remediation

Users can upgrade to Firefox 149 or Firefox ESR 140.9 to address this vulnerability.