CVE-2021-44339 Memory corruption in n/a

High 7.8 Published 28 Feb 2022 Updated 4 Aug 2024

A heap-buffer-overflow in ok-file-formats allows attackers to cause denial of service or potentially execute arbitrary code via crafted PNG files.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2021-44339?

CVE-2021-44339 is a high-severity memory corruption vulnerability in n/a, published on 28 Feb 2022. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

David Brackeen ok-file-formats 203defd is vulnerable to Buffer Overflow. When the function of the ok-file-formats project is used, a heap-buffer-overflow occurred in function ok_png_transform_scanline() in "/ok_png.c:712".

Weakness: CWE-787

Which versions are affected by CVE-2021-44339?

It affects 1 product.

Products include Ok-File-Formats Project Ok-File-Formats.

How do I fix CVE-2021-44339?

No fix has been published for CVE-2021-44339 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2021-44339 being exploited?

There is no known exploitation of CVE-2021-44339 in the wild and no public exploit code.

Sources

Also known as GHSA-96j3-6v5w-jxx7.