openSUSE Leap 42.3: Important Update 2017:2943-1 for libwpd DoS

This update for libwpd fixes the following issues:

Security issue fixed:

- CVE-2017-14226: WP1StylesListener.cpp, WP5StylesListener.cpp, and

WP42StylesListener.cpp in libwpd 0.10.1 mishandle iterators, which

allows remote attackers to cause a denial of service (heap-based buffer

over-read in the WPXTableList class in WPXTable.cpp). This vulnerability

can be triggered in LibreOffice before 5.3.7. It may lead to suffering a

remote attack against a LibreOffice application. (bnc#1058025)

Bugfixes:

- Fix various crashes, leaks and hangs when reading damaged files found by

oss-fuzz.

- Fix crash when NULL is passed as input stream.

- Use symbol visibility on Linux. The library only exports public

functions now.

- Avoid infinite loop. (libwpd#3)

- Remove bashism. (libwpd#5)

- Fix various crashes and hangs when reading broken files found with the

help of american-fuzzy-lop.

- Make --help output of all command line...