CVE-2020-7818 DaviewIndy Heap Overflow Vulnerability

High 7.8 Published 17 Jul 2020 Updated 17 Sep 2024

A heap overflow in DaviewIndy allows arbitrary code execution when a user opens a malformed PDF 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-2020-7818?

CVE-2020-7818 is a high-severity memory corruption vulnerability in HumanTolk Co.Ltd DaviewIndy, published on 17 Jul 2020. 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

DaviewIndy 8.98.9 and earlier has a Heap-based overflow vulnerability, triggered when the user opens a malformed PDF file that is mishandled by Daview.exe. Attackers could exploit this and arbitrary code execution.

Weakness: CWE-787, CWE-20

Which versions are affected by CVE-2020-7818?

It affects 1 product.

Products include Hmtalk Daviewindy.

How do I fix CVE-2020-7818?

No fix has been published for CVE-2020-7818 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-2020-7818 being exploited?

There is no known exploitation of CVE-2020-7818 in the wild and no public exploit code.

Sources

Also known as GHSA-ff89-95cf-8ph8.