An issue was discovered in Exempi through 2.4.4. There is a stack-based buffer over-read in the PostScript_MetaHandler::ParsePSFile() function in XMPFiles/source/FileHandlers/PostScript_Handler.cpp.
https://usn.ubuntu.com/3668-1/
https://cgit.freedesktop.org/exempi/commit/?id=baa4b8a02c1ffab9645d13f0bfb1c0d10d311a0c