SUSE: 2019:0950-1 Moderate: SDL2 Heap Overflow Fixes and Instructions

This update for SDL2 fixes the following issues: Security issues fixed: - CVE-2019-7572: Fixed a buffer over-read in IMA_ADPCM_nibble in audio/SDL_wave.c.(bsc#1124806). - CVE-2019-7578: Fixed a heap-based buffer over-read in InitIMA_ADPCM in audio/SDL_wave.c (bsc#1125099). - CVE-2019-7576: Fixed heap-based buffer over-read in InitMS_ADPCM in audio/SDL_wave.c (bsc#1124799). - CVE-2019-7573: Fixed a heap-based buffer over-read in InitMS_ADPCM in audio/SDL_wave.c (bsc#1124805). - CVE-2019-7635: Fixed a heap-based buffer over-read in Blit1to4 in video/SDL_blit_1.c. (bsc#1124827). - CVE-2019-7636: Fixed a heap-based buffer over-read in SDL_GetRGB in video/SDL_pixels.c (bsc#1124826). - CVE-2019-7638: Fixed a heap-based buffer over-read in Map1toN in video/SDL_pixels.c (bsc#1124824).