CVE-2022-34481 Integer overflow in Firefox

High 8.8 Published Updated

An integer overflow in Firefox and Thunderbird allows attackers to potentially execute arbitrary code or cause a denial of service.

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-2022-34481?

CVE-2022-34481 is a high-severity vulnerability in Mozilla Firefox, published on 22 Dec 2022. 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

In the <code>nsTArray_Impl::ReplaceElementsAt()</code> function, an integer overflow could have occurred when the number of elements to replace was too large for the container. This vulnerability affects Firefox < 102, Firefox ESR < 91.11, Thunderbird < 102, and Thunderbird < 91.11.

Weakness: CWE-190

Which versions are affected by CVE-2022-34481?

It affects 3 products.

Products include Mozilla Firefox, Mozilla Firefox Esr, Mozilla Thunderbird.

How do I fix CVE-2022-34481?

Upgrade to a fixed version.

Is CVE-2022-34481 being exploited?

There is no known exploitation of CVE-2022-34481 in the wild and no public exploit code.

All Mozilla Firefox vulnerabilities

Sources

Also known as DEBIAN-CVE-2022-34481, GHSA-f82m-4qrp-29gx, OESA-2024-1717, OESA-2024-1718, UBUNTU-CVE-2022-34481.

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