I confirm the crash on any jpeg file with -g option. The crash occurs in libjpeg62-turbo as the backtrace shows:

(gdb) r
Starting program: /usr/bin/exiftran -gp -a IMG_4806.JPG -o IMG_4806.test.JPG
Program received signal SIGSEGV, Segmentation fault.
0x00007ffff7f47e28 in ?? () from /lib/x86_64-linux-gnu/libjpeg.so.62
(gdb) bt
#0  0x00007ffff7f47e28 in ?? () from /lib/x86_64-linux-gnu/libjpeg.so.62
#1  0x00000000000000a0 in ?? ()
#2  0x0000555555575a70 in ?? ()
#3  0x0000555555589de0 in ?? ()
#4  0x0000555555589e00 in ?? ()
#5  0x0000555555589e20 in ?? ()
#6  0x000055555558a100 in ?? ()
#7  0x00007fffffffd4e0 in ?? ()
#8  0x0000555555575a70 in ?? ()
#9  0x0000000000000001 in ?? ()
#10 0x0000000000000000 in ?? ()

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