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Exiv2 0.27.99.0 pngimage.cpp readMetadata() Image File memory corruption

A vulnerability, which was classified as critical, was found in Exiv2 0.27.99.0 (Image Processing Software). Affected is the function Exiv2::PngImage::readMetadata() of the file pngimage.cpp. There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.