ZDI-CAN-25145: ZDI-24-1275: (0Day) FastStone Image Viewer GIF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability

First published: Mon Sep 23 2024(Updated: )

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.

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