Security update for libpng12
This update fixes the following security issue:
* CVE-2015-8126 Buffer overflow vulnerabilities in png_get_PLTE/png_set_PLTE functions (bsc#954980)
- Submitted by Petr Gajdos (pgajdos)
Fixed bugs
bnc#954980
CVE-2015-8126: Buffer overflow vulnerabilities in png_get_PLTE/png_set_PLTE functions