CVE-2020-7852 DaviewIndy Heap Overflow Vulnerabilities

High 7.8 Published 24 Mar 2021 Updated 17 Sep 2024

Heap overflow in DaviewIndy allows arbitrary code execution when a user opens a malformed ex.j2c 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-2020-7852?

CVE-2020-7852 is a high-severity memory corruption vulnerability in HumanTalk DaviewIndy, published on 24 Mar 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

DaviewIndy has a Heap-based overflow vulnerability, triggered when the user opens a malformed ex.j2c format file that is mishandled by Daview.exe. Attackers could exploit this and arbitrary code execution.

Weakness: CWE-787, CWE-122

Which versions are affected by CVE-2020-7852?

It affects 1 product.

Products include Hmtalk Daviewindy.

How do I fix CVE-2020-7852?

No fix has been published for CVE-2020-7852 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-2020-7852 being exploited?

There is no known exploitation of CVE-2020-7852 in the wild and no public exploit code.

Sources

Also known as GHSA-9f4w-5h89-5mhq.