CVE-2021-31483 Memory corruption in Brava! Desktop

High 7.8 Published 15 Jun 2021 Updated 3 Aug 2024

Remote attackers can execute arbitrary code via a malicious DWF file due to a heap-based 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-2021-31483?

CVE-2021-31483 is a high-severity memory corruption vulnerability in OpenText Brava! Desktop, published on 15 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 DWF files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-12709.

Weakness: CWE-122

Which versions are affected by CVE-2021-31483?

It affects 1 product.

Products include Opentext Brava\! Desktop.

How do I fix CVE-2021-31483?

No fix has been published for CVE-2021-31483 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-2021-31483 being exploited?

There is no known exploitation of CVE-2021-31483 in the wild and no public exploit code.

Sources

Also known as GHSA-j78q-ph2w-j5cq.