Security update for python3

This update for python3 fixes the following issues:

Security issue fixed:

- CVE-2017-18207: Fixed possible denial of service vulnerability by adding a check to Lib/wave.py that verifies that at least one channel is provided (bsc#1083507).

This update was imported from the SUSE:SLE-12:Update update project.

Fixed bugs
bnc#1083507
VUL-0: CVE-2017-18207: python,python3: The Wave_read._read_fmt_chunk function in Lib/wave.py does not ensure a nonzero channel value, which allows attackers to cause a denial of service
Selected Binaries
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