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forked from jengelh/SDL2
SDL2/CVE-2019-13616.patch
Jan Engelhardt 49aed970ee Accepting request 725412 from home:mgorse:branches:games
- Add CVE-2019-13616.patch: fix heap buffer overflow when reading 
  a crafted bmp file (boo#1141844 CVE-2019-13616).

    potential security exploits (boo#1142031 CVE-2019-13626)

OBS-URL: https://build.opensuse.org/request/show/725412
OBS-URL: https://build.opensuse.org/package/show/games/SDL2?expand=0&rev=89
2019-08-22 20:06:02 +00:00

16 lines
543 B
Diff

diff -r b810b78d32cc -r e7ba650a643a src/video/SDL_bmp.c
--- a/src/video/SDL_bmp.c Thu Jul 25 08:05:13 2019 -0500
+++ b/src/video/SDL_bmp.c Tue Jul 30 11:00:00 2019 -0700
@@ -226,6 +226,11 @@
SDL_RWseek(src, (biSize - headerSize), RW_SEEK_CUR);
}
}
+ if (biWidth <= 0 || biHeight == 0) {
+ SDL_SetError("BMP file with bad dimensions (%dx%d)", biWidth, biHeight);
+ was_error = SDL_TRUE;
+ goto done;
+ }
if (biHeight < 0) {
topDown = SDL_TRUE;
biHeight = -biHeight;