CVE-2024-8384

The JavaScript garbage collector could mis-color cross-compartment objects if OOM conditions were detected at the right point between two passes

Critical · published September 3, 2024

CVSS v3.1
9.8
EPSS
1%
Percentile
53.3
In the wild
Unconfirmed
What it is

🔥 A mind-boggling memory mismanagement issue lurks in Firefox and Thunderbird that could lead to catastrophic corruption! Think of it as a chef misplacing ingredients during a busy dinner rush. If the wrong item ends up in a dish due to a chaotic kitchen, the meal could be ruined—similarly, mis-colored objects in memory can lead to unpredictable behavior. This vulnerability could allow malicious actors to corrupt memory, leading to crashes or potential execution of arbitrary code. It's like having your computer's brain short-circuit at the worst possible moment—imagine the havoc that could wreak on your data and security!

Put simply

Think of it as a chef misplacing ingredients during a busy dinner rush. If the wrong item ends up in a dish due to a chaotic kitchen, the meal could be ruined—similarly, mis-colored objects in memory can lead to unpredictable behavior. The flaw emerges from the JavaScript garbage collector mis-coloring cross-compartment objects during Out Of Memory (OOM) conditions, which can occur between passes in the collection process.

What to do

This vulnerability could allow malicious actors to corrupt memory, leading to crashes or potential execution of arbitrary code. It's like having your computer's brain short-circuit at the worst possible moment—imagine the havoc that could wreak on your data and security! Users should update to Firefox version 130 or newer and Thunderbird version 128.2 or newer immediately to eliminate this flaw. Additionally, consider applying any security patches provided by Mozilla for affected versions to ensure your systems remain secure. You've got this! By following these steps, you can safeguard your browsing experience and keep those pesky bugs at bay! 🛡️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00719 · 53.3th percentile
Published
2024-09-03T12:32Z
EPSS history
Timeline
  • 03 SEP 12:32Z
    The JavaScript garbage collector could mis-color cross-compartment objects if OOM conditions were detected at the right point between two passes
    cvelistv5