CVE-2024-8385 Memory corruption in Firefox

Critical 9.8 Published Updated

A type confusion vulnerability in Firefox and Thunderbird allows attackers to execute arbitrary code via malicious WebAssembly content.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2024-8385?

CVE-2024-8385 is a critical memory corruption vulnerability in Mozilla Firefox, published on 3 Sep 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A difference in the handling of StructFields and ArrayTypes in WASM could be used to trigger an exploitable type confusion vulnerability. This vulnerability affects Firefox < 130, Firefox ESR < 128.2, and Thunderbird < 128.2.

Weakness: CWE-843

Which versions are affected by CVE-2024-8385?

It affects 2 products.

Products include Mozilla Firefox, Mozilla Firefox Esr.

How do I fix CVE-2024-8385?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2024-8385 being exploited?

There is no known exploitation of CVE-2024-8385 in the wild and no public exploit code.

All Mozilla Firefox vulnerabilities

Sources

Also known as DEBIAN-CVE-2024-8385, GHSA-j3m3-gfhr-jmqf, UBUNTU-CVE-2024-8385.

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