CVE-2023-29544 Memory corruption in Firefox

Medium 6.5 Published Updated

A race condition in the garbage collector can cause memory corruption and crashes, potentially allowing code execution in Firefox browsers.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2023-29544?

CVE-2023-29544 is a medium-severity memory corruption vulnerability in Mozilla Firefox, published on 2 Jun 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

If multiple instances of resource exhaustion occurred at the incorrect time, the garbage collector could have caused memory corruption and a potentially exploitable crash. This vulnerability affects Firefox for Android < 112, Firefox < 112, and Focus for Android < 112.

Weakness: CWE-400

Which versions are affected by CVE-2023-29544?

It affects 3 products.

Products include Mozilla Firefox, Mozilla Firefox Mobile, Mozilla Focus.

How do I fix CVE-2023-29544?

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-2023-29544 being exploited?

There is no known exploitation of CVE-2023-29544 in the wild and no public exploit code.

All Mozilla Firefox vulnerabilities

Sources

Also known as GHSA-h5xr-379w-chrw, UBUNTU-CVE-2023-29544.

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