Security update for libexif

This update for libexif fixes the following issues:

- CVE-2019-9278: Fixed an integer overflow (bsc#1160770).
- CVE-2018-20030: Fixed a denial of service by endless recursion (bsc#1120943).

This update was imported from the SUSE:SLE-15:Update update project.

Fixed bugs
bnc#1160770
VUL-0: CVE-2019-9278: libexif: Out of bound write in exif-data.c
bnc#1120943
VUL-1: CVE-2018-20030: libexif: Input validation issue resulting in a denial of service
Selected Binaries
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