CVE-2021-43273 Memory corruption in n/a

Low 3.3 Published 14 Nov 2021 Updated 4 Aug 2024

An out-of-bounds read in the Drawings SDK allows attackers to execute arbitrary code via a crafted DGN file.

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-2021-43273?

CVE-2021-43273 is a low-severity memory corruption vulnerability in n/a, published on 14 Nov 2021. 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

An Out-of-bounds Read vulnerability exists in the DGN file reading procedure in Open Design Alliance Drawings SDK before 2022.11. Crafted data in a DGN file and lack of verification of input data can trigger a read past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.

Weakness: CWE-125

Which versions are affected by CVE-2021-43273?

It affects 1 product.

Products include Opendesign Drawings Sdk.

How do I fix CVE-2021-43273?

No fix has been published for CVE-2021-43273 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-2021-43273 being exploited?

There is no known exploitation of CVE-2021-43273 in the wild and no public exploit code.

Sources

Also known as GHSA-8h79-9mcx-wqxg.