CVE-2021-31509 Memory corruption in Brava! Desktop

High 7.8 Published 29 Jun 2021 Updated 3 Aug 2024

Remote attackers can execute arbitrary code via a malicious DXF file due to a buffer overflow in OpenText Brava! Desktop.

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-2021-31509?

CVE-2021-31509 is a high-severity memory corruption vulnerability in OpenText Brava! Desktop, published on 29 Jun 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

This vulnerability allows remote attackers to execute arbitrary code on affected installations of OpenText Brava! Desktop 16.6.3.84. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of DXF files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-13309.

Weakness: CWE-787

Which versions are affected by CVE-2021-31509?

It affects 1 product.

Products include Opentext Brava\! Desktop.

How do I fix CVE-2021-31509?

No fix has been published for CVE-2021-31509 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-2021-31509 being exploited?

There is no known exploitation of CVE-2021-31509 in the wild and no public exploit code.

Sources

Also known as GHSA-v5cf-8vgj-92rr.