Pixmeo OsiriX MD is vulnerable to a use after free scenario, which could allow an attacker to upload a crafted DICOM file and cause memory corruption leading to a denial-of-service condition.
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.