Microsoft Color Management Module (icm32.dll) out-of-bounds read （CVE-2017-0061）

We have encountered a crash in the Windows Color Management library (icm32.dll), in the icm32!Fill_ushort_ELUTs_from_lut16Tag function, while trying to display a TIFF image with a malformed embedded color profile: ``` (7c1c.93b0): Access violation - code c0000005 (first chance) First chance exceptions are reported before any exception handling. This exception may be expected and handled. eax=00000001 ebx=0028f0dc ecx=0984f7c0 edx=00006ff0 esi=0980f800 edi=00000100 eip=6ac4f701 esp=0028ecc8 ebp=0028ecf4 iopl=0 nv up ei pl nz na pe nc cs=0023 ss=002b ds=002b es=002b fs=0053 gs=002b efl=00210206 icm32!Fill_ushort_ELUTs_from_lut16Tag+0xe4: 6ac4f701 0fb711 movzx edx,word ptr [ecx] ds:002b:0984f7c0=???? 0:000> kb ChildEBP RetAddr Args to Child 0028ecf4 6ac495bd 0028f0dc ff837f84 00004000 icm32!Fill_ushort_ELUTs_from_lut16Tag+0xe4 0028ed28 6ac4b117 0028f0dc 0028ef54 00002100 icm32!ExtractElutFromLut16+0xec 0028ed80 6ac4ca1d 0028f0dc 0028ef54 41324230 icm32!ExtractAll_MFT_LutsFromLut16+0x10a 0028edac 6ac4ccbf 0028f0dc 0028ef54 41324230 icm32!ExtractAll_MFT_Luts+0x8c 0028ee3c 6ac4d562 0028f0dc 0028ef54 00000000 icm32!ExtractAllLuts+0x257 0028f148 6ac4e947 0953ee58 09534ff0 061f7f70 icm32!CreateCombi+0x725 0028f2ec 6ac43c84 0953ee58 09534ff0 00000000 icm32!PrepareCombiLUTs+0x3a6 0028f498 6ac42dba 0953ee58 09534ff0 09534ff0 icm32!CMMConcatInitPrivate+0x23e 0028f4b4 6ac41630 0028f520 09534ff0 0028f5c4 icm32!CWConcatColorWorld4MS+0x42 0028f4e0 6ac41fce 0028f520 00180002 00000000 icm32!CMCreateMultiProfileTransformInternal+0x10b 0028f508 6c5ec8af 0028f5bc 00000002 0028f5c4 icm32!CMCreateMultiProfileTransform+0x20 0028f57c 6d2fd7c8 0028f5bc 00000002 0028f5c4 mscms!CreateMultiProfileTransform+0x22d 0028f5a0 6d2fb62c 0028f5bc 0028f5c4 00000000 WindowsCodecsExt!ICMModule::CreateMultiProfileTransform+0x27 0028f5d4 6d2f58cd 06277f90 40c8e2f0 40cf42f0 WindowsCodecsExt!CIcmColorTransform::CreateVectorTransform+0x6f 0028f640 69b25e74 09744f88 0970afac 0028f6b4 WindowsCodecsExt!CFormatConverterNChannel::Initialize+0x4b2 0028f6d8 6c8ea4be 0970cf90 0970afac 0028f710 WindowsCodecs!CFormatConverterResolver::Initialize+0x318 0028f724 6c8ec909 0010300c 00000000 07b67f68 gdiplus!GpWicDecoder::InitFormatConverter+0x7e 0028f760 6c8e9d72 00000000 07b55fd0 07b4df98 gdiplus!GpWicDecoder::DecodeFrame+0xb5 0028f774 6c8ddeb8 07b67f68 07b4df98 07b4df98 gdiplus!GpWicDecoder::GetImageInfo+0x29 0028f798 6c8de328 07b4df98 0000027f 07b4df38 gdiplus!GpDecodedImage::InternalGetImageInfo+0x3f 0028f7b8 6c830aee 07b55fd0 07b4df98 07b4bcd8 gdiplus!GpDecodedImage::GetImageInfo+0x18 0028f7cc 6c832cd3 0028f880 0028f7e8 6c83330d gdiplus!CopyOnWriteBitmap::CopyOnWriteBitmap+0x48 0028f7d8 6c83330d 0028f880 07b45f28 0028f7f8 gdiplus!CopyOnWriteBitmap::Create+0x1d 0028f7e8 6c8342aa 0028f880 07b43ff4 0028f81c gdiplus!GpBitmap::GpBitmap+0x2c 0028f7f8 6c803e8d 0028f880 085a1000 07b43ff0 gdiplus!GpImage::LoadImageW+0x69 0028f81c 003b171f 0028f880 07b43ff4 b2121dcf gdiplus!GdipLoadImageFromFile+0x74 [...] ``` The issue reproduces on Windows 7. It is easiest to reproduce with PageHeap enabled. In order to reproduce the problem with the provided samples, it might be necessary to use a custom program which displays images using GDI+, or any existing GDI+ client (such as Microsoft Office). Attached is a TIFF file which triggers the crash.