CVE-2024-9114 FastStone Image Viewer GIF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability

High 7.8 Published 22 Nov 2024 Updated 22 Nov 2024

Remote attackers can execute arbitrary code by tricking users into opening malicious GIF files in FastStone Image Viewer.

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-2024-9114?

CVE-2024-9114 is a high-severity memory corruption vulnerability in FastStone Image Viewer, published on 22 Nov 2024. 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

FastStone Image Viewer GIF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of FastStone Image Viewer. 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 GIF 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-25145.

Weakness: CWE-787

Which versions are affected by CVE-2024-9114?

It affects 1 product.

Products include Faststone Image Viewer.

How do I fix CVE-2024-9114?

No fix has been published for CVE-2024-9114 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-2024-9114 being exploited?

There is no known exploitation of CVE-2024-9114 in the wild and no public exploit code.

Sources

Also known as GHSA-vxc5-94ff-325x.