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Test your applicationsUpgrade gdal to version 3.4.1 or higher.
Affected versions of this package are vulnerable to Race Condition via the MSG driver. This driver looks for a matching "prologue"-file when calling MSGDataset::Open. The filename depends on the satellite number. There are only 4 satellites and all of them are tried until an existing prologue is found. The satellite number is stored as a static variable iCurrentSatellite and each call to Open triggers a loop that modifies this variable. If multiple threads try to open a MSG dataset, the state of iCurrentSatellite is modified in all threads.