CVE-2024-45237 Memory corruption in n/a

Critical 9.8 Published Updated

A buffer overflow in the Fort library allows attackers to execute code or cause denial of service via malicious RPKI certificates.

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

What is CVE-2024-45237?

CVE-2024-45237 is a critical memory corruption vulnerability in n/a, published on 24 Aug 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue was discovered in Fort before 1.6.3. A malicious RPKI repository that descends from a (trusted) Trust Anchor can serve (via rsync or RRDP) a resource certificate containing a Key Usage extension composed of more than two bytes of data. Fort writes this string into a 2-byte buffer without properly sanitizing its length, leading to a buffer overflow.

Weakness: CWE-120

Which versions are affected by CVE-2024-45237?

It affects 1 product.

Products include Nicmx Fort-Validator.

How do I fix CVE-2024-45237?

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-2024-45237 being exploited?

There is no known exploitation of CVE-2024-45237 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2024-45237, GHSA-wpp2-87q7-h53v, UBUNTU-CVE-2024-45237.

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