ytnef: heap-based-buffer overflow in SwapWord (ytnef.c)

Description: ytnef is Yeraze’s TNEF Stream Reader – for winmail.dat files. The complete ASan output of the issue: # ytnefprint $FILE ==22220==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x602000000038 at pc 0x7ff75139d8eb bp 0x7ffeed684ad0 sp 0x7ffeed684ac8 READ of size 1 at 0x602000000038 … Continue reading ytnef: heap-based-buffer overflow in SwapWord (ytnef.c)