CVE-2024-3856: Use After Free
First published: Tue Apr 16 2024(Updated: )
A use-after-free could occur during WASM execution if garbage collection ran during the creation of an array.
Credit: security@mozilla.org security@mozilla.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/firefox | 135.0-1 | |
| Firefox | <125 | 125 |
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Reference Links
- https://bugzilla.mozilla.org/show_bug.cgi?id=1885829
- https://www.mozilla.org/security/advisories/mfsa2024-18/
- https://launchpad.net/bugs/cve/CVE-2024-3856
- https://www.mozilla.org/en-US/security/advisories/mfsa2024-18/
- https://www.mozilla.org/en-US/security/advisories/mfsa2024-18/#CVE-2024-3856
- https://security-tracker.debian.org/tracker/CVE-2024-3856
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-3856
- https://nvd.nist.gov/vuln/detail/CVE-2024-3856
- https://ubuntu.com/security/CVE-2024-3856
Peer vulnerabilities
(Found alongside the following vulnerabilities)
Frequently Asked Questions
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.
How do I fix CVE-2024-3856?
To fix CVE-2024-3856, users should upgrade to Mozilla Firefox version 125 or later.
What versions of Firefox are affected by CVE-2024-3856?
CVE-2024-3856 affects all versions of Firefox prior to 125.
Can CVE-2024-3856 be exploited remotely?
Yes, CVE-2024-3856 can be exploited remotely through malicious websites leveraging WASM execution.
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.
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