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Mozilla Firefox (Desktop) Critical Security Vulnerabilities

March 2024

Cornerstone.IT Gold Microsoft Partner

Mozilla Firefox (Desktop): Please see the list of vulnerability and fixes identified below.

Identified Vulnerabilities

Privileged JavaScript Execution via Event Handlers (CVE-2024-29944)

An attacker was able to inject an event handler into a privileged object that would allow arbitrary JavaScript execution in the parent process. Note: This vulnerability affects Desktop Firefox only, it does not affect mobile versions of Firefox.

Out-of-bounds access via Range Analysis bypass (CVE-2024-29943)

An attacker was able to perform an out-of-bounds read or write on a JavaScript object by fooling range-based bounds check elimination. This vulnerability affects Firefox < 124.0.1.

Patch and Upgrade Available

Mozilla Foundation issued official patch/upgrade in their Security Advisory Board.