Fix the safety checks for invalid IFD offsets

oozcitak / exiflibrary

A .Net Standard library for editing Exif metadata

MIT License

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Fix the safety checks for invalid IFD offsets #93

Closed ArcanoxDragon closed 2 years ago

ArcanoxDragon commented 2 years ago

This fixes issue #87, which occurs because the IFD field count was being retrieved before the offset value was bounds-checked against the header length.

ziriax commented 2 years ago

Any reason why this PR is not getting merged?