CVE-2024-0747 Security feature bypass in Firefox

Medium 6.5 Published Updated

A flaw in Firefox and Thunderbird allowed parent pages to override child iframe Content Security Policies, bypassing security restrictions.

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-2024-0747?

CVE-2024-0747 is a medium-severity vulnerability in Debian Debian Linux, published on 23 Jan 2024. 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

When a parent page loaded a child in an iframe with `unsafe-inline`, the parent Content Security Policy could have overridden the child Content Security Policy. This vulnerability affects Firefox < 122, Firefox ESR < 115.7, and Thunderbird < 115.7.

Weakness: CWE-693

Which versions are affected by CVE-2024-0747?

It affects 4 products.

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

How do I fix CVE-2024-0747?

Upgrade to a fixed version.

Is CVE-2024-0747 being exploited?

There is no known exploitation of CVE-2024-0747 in the wild and no public exploit code.

All Debian Debian Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2024-0747, GHSA-jx5w-px6r-88w4, UBUNTU-CVE-2024-0747.

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