libtiff’s tiffcrop tool has a uint32_t underflow which leads to out of bounds read and write in the extractContigSamples8bits routine. An attacker who supplies a crafted file to tiffcrop could trigger this flaw, most likely by tricking a user into opening the crafted file with tiffcrop. Triggering this flaw could cause a crash or potentially further exploitation.
[
{
"vendor": "n/a",
"product": "libtiff",
"versions": [
{
"version": "libtiff 4.4.0rc1",
"status": "affected"
}
]
}
]