Mozilla Firefox and Thunderbird Use-After-Free Vulnerability in Graphics: ImageLib Component

A use-after-free vulnerability has been identified in the Graphics: ImageLib component of Mozilla Firefox and Thunderbird. This issue affects Firefox versions prior to 148, Firefox ESR versions prior to 115.33 and 140.8, as well as Thunderbird versions prior to 148 and 140.8. The vulnerability arises from improper memory management, which could potentially be exploited to execute arbitrary code.

Impact

Exploitation of this vulnerability leads to a use-after-free condition, which can commonly result in memory corruption and the execution of arbitrary code.

Remediation

Users can upgrade to Firefox 148, Firefox ESR 140.8, or Thunderbird 148 to address this vulnerability. For Firefox ESR 115.33 users, the vulnerability is also fixed in that version.