CVE-2024-3856: Use After Free
Published Apr 16, 2024
·Updated
A use-after-free could occur during WASM execution if garbage collection ran during the creation of an array.
Affected Software
3 affected componentsFixes available
Mozilla Firefox<125
125
Mozilla Firefox<125.0
debian/firefox
138.0.1-1
Event History
Apr 16, 2024
CVE Published
via Mozilla·12:00 AM
CVE Published
via MITRE·03:14 PM
Data Sourced
via MITRE·03:14 PM
DescriptionWeakness
May 2, 2024
Data Sourced
via Launchpad·07:33 AM
Description
Sep 15, 2024
Data Sourced
via Ubuntu·07:53 AM
RemedyDescriptionSeverityAffected Software
May 2, 2025
Data Sourced
via Debian·02:15 PM
DescriptionAffected Software
Peer vulnerabilities
Found alongside the following vulnerabilities.
Frequently Asked Questions
1
What is the severity of CVE-2024-3856?
CVE-2024-3856 has been classified as a critical vulnerability that could lead to arbitrary code execution.
2
How do I fix CVE-2024-3856?
To fix CVE-2024-3856, users should upgrade to Mozilla Firefox version 125 or later.
3
What versions of Firefox are affected by CVE-2024-3856?
CVE-2024-3856 affects all versions of Firefox prior to 125.
4
Can CVE-2024-3856 be exploited remotely?
Yes, CVE-2024-3856 can be exploited remotely through malicious websites leveraging WASM execution.
5
What should be done if unable to upgrade for CVE-2024-3856?
If upgrading is not possible for CVE-2024-3856, it's advisable to minimize exposure by avoiding untrusted websites and using alternative browsers.