crash while thumbnailing dds file

[Peter Berry]

gthumb 3.4.3-1 crashes every time when viewing a directory containing the attached file. I'm on Mint 18.3 but the gthumb package is from xenial.

To reproduce, create a temporary directory, put the attached file in it, then run gthumb and navigate to that directory.

gdb backtrace follows:

Thread 1 "gthumb" received signal SIGSEGV, Segmentation fault.
_cairo_image_surface_create_from_pixbuf (pixbuf=pixbuf@entry=0x555556605180) at cairo-utils.c:424
424 cairo-utils.c: No such file or directory.
(gdb) bt
#0 0x000055555558ea88 in _cairo_image_surface_create_from_pixbuf (pixbuf=pixbuf@entry=0x555556605180) at cairo-utils.c:424
#1 0x00005555555f9f62 in watch_thumbnailer_cb (pid=12904,
    pid@entry=<error reading variable: value has been optimised out>, status=<error reading variable: value has been optimised out>, user_data=0x5555566625b0,
    user_data@entry=<error reading variable: value has been optimised out>) at gth-thumb-loader.c:736
#2 0x00007ffff50c0ad4 in g_child_watch_dispatch (source=<optimised out>, callback=<optimised out>, user_data=<optimised out>) at /build/glib2.0-B0e4Gz/glib2.0-2.48.2/./glib/gmain.c:5221
#3 0x00007ffff50c404a in g_main_context_dispatch (context=0x55555589b100)
    at /build/glib2.0-B0e4Gz/glib2.0-2.48.2/./glib/gmain.c:3154
#4 0x00007ffff50c404a in g_main_context_dispatch (context=context@entry=0x55555589b100)
    at /build/glib2.0-B0e4Gz/glib2.0-2.48.2/./glib/gmain.c:3769
#5 0x00007ffff50c43f0 in g_main_context_iterate (context=context@entry=0x55555589b100, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimised out>)
    at /build/glib2.0-B0e4Gz/glib2.0-2.48.2/./glib/gmain.c:3840
#6 0x00007ffff50c449c in g_main_context_iteration (context=context@entry=0x55555589b100, may_block=may_block@entry=1) at /build/glib2.0-B0e4Gz/glib2.0-2.48.2/./glib/gmain.c:3901
#7 0x00007ffff568bd8d in g_application_run (application=0x55555587c1a0 [GthApplication], argc=2, argv=0x7fffffffe088) at /build/glib2.0-B0e4Gz/glib2.0-2.48.2/./gio/gapplication.c:2381
#8 0x0000555555588e73 in main (argc=2, argv=0x7fffffffe088) at main.c:493