CVE-2023-0803

A flaw was found in tiffcrop, a program distributed by the libtiff package. A specially crafted tiff file can lead to an out-of-bounds write in the extractContigSamplesShifted16bits function in tools/tiffcrop.c, resulting in a Denial of Service and limited data modification.

It was discovered that LibTIFF could be made to read out of bounds when processing certain malformed image files with the tiffcrop tool. If a user were tricked into opening a specially crafted image file, an attacker could possibly use this issue to cause tiffcrop to crash, resulting in a denial of service. It was discovered that LibTIFF could be made to write out of bounds when processing certain malformed image files with the tiffcrop tool. If a user were tricked into opening a specially crafted image file, an attacker could possibly use this issue to cause tiffcrop to crash, resulting in a denial of service, or possibly execute arbitrary code.