libs/giflib/patches/010-CVE-2022-28506.patch

   1 --- a/gif2rgb.c
   2 +++ b/gif2rgb.c
   3 @@ -294,6 +294,11 @@ static void DumpScreen2RGB(char *FileNam
   4              GifRow = ScreenBuffer[i];
   5              GifQprintf("\b\b\b\b%-4d", ScreenHeight - i);
   6              for (j = 0, BufferP = Buffer; j < ScreenWidth; j++) {
   7 +                /* Check if color is within color palete */
   8 +                if (GifRow[j] >= ColorMap->ColorCount)
   9 +                {
  10 +                   GIF_EXIT(GifErrorString(D_GIF_ERR_IMAGE_DEFECT));
  11 +                }
  12                  ColorMapEntry = &ColorMap->Colors[GifRow[j]];
  13                  *BufferP++ = ColorMapEntry->Red;
  14                  *BufferP++ = ColorMapEntry->Green;