############### Application: IrfanView RLE Image Decompression Buffer Overflow Vulnerability Plateform: Windows Version: The vulnerabilities are confirmed in version 4.33. Other versions may also be affected. Exploitation: Remote code execution Secunia Number: SA49856 {PRL}: 2012-32 Author: Francis Provencher (Protek Research Lab's) Website: http://www.protekresearchlab.com/ Twitter: @ProtekResearch ############### 1) Introduction 2) Timeline 3) Technical details 4) PoC ############### =============== 1) Introduction =============== IrfanView is a freeware/shareware image viewer for Microsoft Windows that can view, edit, and convert image files and play video/audio files. It is noted for its small size, speed, ease of use, and ability to handle a wide variety of graphic file formats, and has some image creation and painting capabilities. The software was first released in 1996. IrfanView is free for non-commercial use; commercial use requires paid registration. ##################################################################################### ============ 2) Timeline ============ 2012-07-11 - Vulnerability reported to secunia 2012-11-12 - Coordinated public release of advisory ##################################################################################### ================= 3) Technical details ================= An error when processing RLE compressed images can be exploited to cause a heap-based buffer overflow via a specially crafted BMP image containing many "End of Line" markers within a stream. ##################################################################################### ============= 4) The Code ============= http://protekresearchlab.com/exploits/PRL-2012-32.rle