CVE-2023-49208 Memory corruption in n/a

Critical 9.8 Published Updated

A buffer overflow in Glewlwyd SSO server allows attackers to potentially execute arbitrary code or cause a denial of service during FIDO2 registration.

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

What is CVE-2023-49208?

CVE-2023-49208 is a critical memory corruption vulnerability in n/a, published on 23 Nov 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

scheme/webauthn.c in Glewlwyd SSO server before 2.7.6 has a possible buffer overflow during FIDO2 credentials validation in webauthn registration.

Weakness: CWE-120

Which versions are affected by CVE-2023-49208?

It affects 1 product.

Products include Glewlwyd Sso Server Project Glewlwyd Sso Server.

How do I fix CVE-2023-49208?

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-2023-49208 being exploited?

There is no known exploitation of CVE-2023-49208 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2023-49208, GHSA-x7rh-wvh4-cx6x, UBUNTU-CVE-2023-49208.

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