CVE-2024-48938 Denial of service in n/a

High 7.5 Published Updated

Attackers can cause denial of service in Znuny by sending emails with specific HTML content, leading to high CPU usage and blocking the parsing process.

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

What is CVE-2024-48938?

CVE-2024-48938 is a high-severity denial of service vulnerability in n/a, published on 11 Oct 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Znuny before LTS 6.5.1 through 6.5.10 and 7.0.1 through 7.0.16 allows DoS/ReDos via email. Parsing the content of emails where HTML code is copied from Microsoft Word could lead to high CPU usage and block the parsing process.

Weakness: CWE-1333

Which versions are affected by CVE-2024-48938?

It affects 1 product.

Products include Znuny Znuny.

How do I fix CVE-2024-48938?

Upgrade to a fixed version.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2024-48938 being exploited?

There is no known exploitation of CVE-2024-48938 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2024-48938, GHSA-pjf2-268r-g6x9, UBUNTU-CVE-2024-48938.

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