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Date: Wed, 27 Apr 2016 11:36:32 +0800
From: "PXO炳林" <>
To: "oss-security" <>
Subject: 3 bugs refer to buffer overflow in in libtiff 4.0.6

Hello oss-security,

I did some test and found three bugs refer to buffer overflow: one stack buffer overflow in thumbnail and two buffer overflows in bmp2tiff. 

Please let me know whether CVE Identifier number could be assigned.


Running each poc file crashes thumbnail and bmp2tiff made with AddressSanitizer in tiff-4.0.6. I have attached poc and log files . 

Steps to Reproduce:

1) download the source code of tiff-4.0.6 from url ( and compile it with gcc AddressSanitizer
2) cd the directory where the bmp2tiff with Asan is and put a poc
3) run a poc file with bmp2tiff made with AddressSanitizer (ASan) in tiff-4.0.6
4) eg: ./bmp2tiff ./crashes/poc_745.bmp 1.tiff; ./bmp2tiff ./crashes/poc_775.bmp 1.tiff

Actual Results: The application thumbnail and bmp2tiff 4.0.6 crashed after run the poc. Asan detect crashes.

From Debug_Orz
Content of type "text/html" skipped

Download attachment "thumbnail_bmp2tiff_pocs_logs.7z" of type "application/octet-stream" (56644 bytes)

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