CVE-2021-25227 Denial of service in Trend Micro Antivirus for Mac

Low 3.3 Published 4 Feb 2021 Updated 3 Aug 2024

An attacker with low-privileged code execution can cause memory exhaustion in Trend Micro Antivirus for Mac, disabling scanning functionality.

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-2021-25227?

CVE-2021-25227 is a low-severity denial of service vulnerability in Trend Micro Antivirus for Mac, published on 4 Feb 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

Trend Micro Antivirus for Mac 2021 (Consumer) is vulnerable to a memory exhaustion vulnerability that could lead to disabling all the scanning functionality within the application. Please note: an attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability - i.e. the attacker must already have access to the target system (either legitimately or via another exploit).

Weakness: CWE-400

Which versions are affected by CVE-2021-25227?

It affects 1 product.

Products include Trendmicro Antivirus.

How do I fix CVE-2021-25227?

No fix has been published for CVE-2021-25227 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2021-25227 being exploited?

There is no known exploitation of CVE-2021-25227 in the wild and no public exploit code.

Sources

Also known as GHSA-j2x4-hphx-h7rg.