imgcodecs(tiff): check TIFF tile size

oss-fuzz: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=13280 oss-fuzz: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=13283
6 years ago · 0c490accae
parent 1b5a9c9718
commit 0c490accae
1 changed files with 4 additions and 0 deletions
--- a/modules/imgcodecs/src/grfmt_tiff.cpp
+++ b/modules/imgcodecs/src/grfmt_tiff.cpp
@ -401,6 +401,10 @@ bool  TiffDecoder::readData( Mat& img )
                    (!is_tiled && tile_height0 == std::numeric_limits<uint32>::max()) )
                tile_height0 = m_height;

+            CV_Assert((int)tile_width0 > 0 && (int)tile_width0 < std::numeric_limits<int>::max());
+            CV_Assert((int)tile_height0 > 0 && (int)tile_height0 < std::numeric_limits<int>::max());
+            CV_Assert(((uint64_t)tile_width0 * tile_height0 * ncn * (bpp / bitsPerByte) < (CV_BIG_UINT(1) << 30)) && "TIFF tile size is too large: >= 1Gb");
+
            if (dst_bpp == 8)
            {
                // we will use TIFFReadRGBA* functions, so allocate temporary buffer for 32bit RGBA