Description: ytnef is Yeraze’s TNEF Stream Reader – for winmail.dat files. The complete ASan output of the issue: # ytnefprint $FILE ==22808==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x61800000039e at pc 0x7f6b57c2fcb8 bp 0x7ffd8ca179d0 sp 0x7ffd8ca179c8 READ of size 1 at 0x61800000039e … Continue reading ytnef: heap-based buffer overflow in DecompressRTF (ytnef.c)