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QT PNG ICC Processing Out-Of-Bounds Read

QT PNG ICC Processing Out-Of-Bounds Read
Posted May 27, 2021
Authored by Google Security Research, natashenka

The QImage class can read out-of-bounds when reading a specially-crafted PNG file, where a tag byte offset goes out of bounds. This could potentially allow an attacker to determine values in memory based on the QImage pixels, if QT is used to process untrusted images.

tags | exploit
SHA-256 | f89e3b09d6fb627d5b5269e3b5d3b0c770cd2aefc3bbd97c7b659ae459e07be2
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