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enforce minimum FileTypeBox length in Jp2Image::printStructure #9318

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enforce minimum FileTypeBox length in Jp2Image::printStructure #9318

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1 change: 1 addition & 0 deletions src/jp2image.cpp
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Expand Up @@ -444,6 +444,7 @@ void Jp2Image::printStructure(std::ostream& out, PrintStructureOption option, si
case kJp2BoxType::FileTypeBox: {
// This box shall immediately follow the JPEG 2000 Signature box
/// \todo All files shall contain one and only one File Type box.
Internal::enforce(box.length >= boxHSize, ErrorCode::kerCorruptedMetadata);
Blob boxData(box.length - boxHSize);
io_->readOrThrow(boxData.data(), boxData.size(), ErrorCode::kerCorruptedMetadata);
if (!Internal::isValidBoxFileType(boxData))
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