ImageMagick 7.0.8-50 Q16 has a heap-based buffer over-read in MagickCore/fourier.c in ComplexImages.
### Prerequisites

- [x] I have written a descriptive issue title
- [x] I have verified that I am using the latest version of ImageMagick
- [x] I have searched [open](https://github.com/ImageMagick/ImageMagick/issues) and [closed](https://github.com/ImageMagick/ImageMagick/issues?q=is%3Aissue+is%3Aclosed) issues to ensure it has not already been reported

### Description
<!-- A description of the bug or feature -->
There's a heap-buffer-overflow in MagickCore/fourier.c:305:45 in ComplexImages.


### Steps to Reproduce
<!-- List of steps, sample code, failing test or link to a project that reproduces the behavior.
     Make sure you place a stack trace inside a code (```) block to avoid linking unrelated issues -->
run_cmd:
`magick -seed 0 -treedepth 71 "(" magick:logo +repage ")" "(" magick:granite -white-threshold 0% -cycle 256 -lat 815  ")" -bordercolor rgb"("101,151,20")" -blue-primary 638,241  -print "0O." -complex multiply   tmp `

Second one also can trigger.
cmd:
`magick -seed 0 "(" magick:logo +repage ")" "(" magick:logo +repage ")" -render -size 2872 -complex multiply -quiet   tmp
`

Here's ASAN result.
```
==16842==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x61e000000a80 at pc 0x7fea5bb0c52f bp 0x7fff5c11c590 sp 0x7fff5c11c588
READ of size 4 at 0x61e000000a80 thread T0
    #0 0x7fea5bb0c52e in ComplexImages MagickCore/fourier.c:305:45
    #1 0x7fea5b3328c1 in CLIListOperatorImages MagickWand/operation.c:3890:22
    #2 0x7fea5b33e34e in CLIOption MagickWand/operation.c:5276:14
    #3 0x7fea5b17fa99 in ProcessCommandOptions MagickWand/magick-cli.c:477:7
    #4 0x7fea5b180d0a in MagickImageCommand MagickWand/magick-cli.c:796:5
    #5 0x7fea5b1caba1 in MagickCommandGenesis MagickWand/mogrify.c:185:14
    #6 0x526f95 in MagickMain utilities/magick.c:149:10
    #7 0x5268e1 in main utilities/magick.c:180:10
    #8 0x7fea55c41b96 in __libc_start_main /build/glibc-OTsEL5/glibc-2.27/csu/../csu/libc-start.c:310
    #9 0x41b069 in _start (install/bin/magick+0x41b069)

0x61e000000a80 is located 0 bytes to the right of 2560-byte region [0x61e000000080,0x61e000000a80)
allocated by thread T0 here:
    #0 0x4e6200 in __interceptor_posix_memalign (install/bin/magick+0x4e6200)
    #1 0x7fea5bbb9666 in AcquireAlignedMemory MagickCore/memory.c:265:7
    #2 0x7fea5b910d5c in AcquireCacheNexusPixels MagickCore/cache.c:4968:37
    #3 0x7fea5b8fe1c4 in SetPixelCacheNexusPixels MagickCore/cache.c:5076:12
    #4 0x7fea5b8f5b05 in GetVirtualPixelCacheNexus MagickCore/cache.c:2751:10
    #5 0x7fea5b913f36 in GetCacheViewVirtualPixels MagickCore/cache-view.c:664:10
    #6 0x7fea5bb0ae5d in ComplexImages MagickCore/fourier.c:250:8
    #7 0x7fea5b3328c1 in CLIListOperatorImages MagickWand/operation.c:3890:22
    #8 0x7fea5b33e34e in CLIOption MagickWand/operation.c:5276:14
    #9 0x7fea5b17fa99 in ProcessCommandOptions MagickWand/magick-cli.c:477:7
    #10 0x7fea5b180d0a in MagickImageCommand MagickWand/magick-cli.c:796:5
    #11 0x7fea5b1caba1 in MagickCommandGenesis MagickWand/mogrify.c:185:14
    #12 0x526f95 in MagickMain utilities/magick.c:149:10
    #13 0x5268e1 in main utilities/magick.c:180:10
    #14 0x7fea55c41b96 in __libc_start_main /build/glibc-OTsEL5/glibc-2.27/csu/../csu/libc-start.c:310

SUMMARY: AddressSanitizer: heap-buffer-overflow MagickCore/fourier.c:305:45 in ComplexImages

```

Here's the ASAN result for second cmd
```
==16863==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x7f2a0831b800 at pc 0x7f2a1747e649 bp 0x7ffd7c094350 sp 0x7ffd7c094348
WRITE of size 4 at 0x7f2a0831b800 thread T0
    #0 0x7f2a1747e648 in ComplexImages MagickCore/fourier.c:305:18
    #1 0x7f2a16ca48c1 in CLIListOperatorImages MagickWand/operation.c:3890:22
    #2 0x7f2a16cb034e in CLIOption MagickWand/operation.c:5276:14
    #3 0x7f2a16af1a99 in ProcessCommandOptions MagickWand/magick-cli.c:477:7
    #4 0x7f2a16af2d0a in MagickImageCommand MagickWand/magick-cli.c:796:5
    #5 0x7f2a16b3cba1 in MagickCommandGenesis MagickWand/mogrify.c:185:14
    #6 0x526f95 in MagickMain utilities/magick.c:149:10
    #7 0x5268e1 in main utilities/magick.c:180:10
    #8 0x7f2a115b3b96 in __libc_start_main /build/glibc-OTsEL5/glibc-2.27/csu/../csu/libc-start.c:310
    #9 0x41b069 in _start (install/bin/magick+0x41b069)

0x7f2a0831b800 is located 0 bytes to the right of 3686400-byte region [0x7f2a07f97800,0x7f2a0831b800)
allocated by thread T0 here:
    #0 0x4e6200 in __interceptor_posix_memalign (install/bin/magick+0x4e6200)
    #1 0x7f2a1752b666 in AcquireAlignedMemory MagickCore/memory.c:265:7
    #2 0x7f2a172746ac in OpenPixelCache MagickCore/cache.c:3728:46
    #3 0x7f2a1727a991 in GetImagePixelCache MagickCore/cache.c:1754:18
    #4 0x7f2a17280c59 in SyncImagePixelCache MagickCore/cache.c:5494:28
    #5 0x7f2a174defc1 in SetImageStorageClass MagickCore/image.c:2627:10
    #6 0x7f2a1747c4f7 in ComplexImages MagickCore/fourier.c:185:7
    #7 0x7f2a16ca48c1 in CLIListOperatorImages MagickWand/operation.c:3890:22
    #8 0x7f2a16cb034e in CLIOption MagickWand/operation.c:5276:14
    #9 0x7f2a16af1a99 in ProcessCommandOptions MagickWand/magick-cli.c:477:7
    #10 0x7f2a16af2d0a in MagickImageCommand MagickWand/magick-cli.c:796:5
    #11 0x7f2a16b3cba1 in MagickCommandGenesis MagickWand/mogrify.c:185:14
    #12 0x526f95 in MagickMain utilities/magick.c:149:10
    #13 0x5268e1 in main utilities/magick.c:180:10
    #14 0x7f2a115b3b96 in __libc_start_main /build/glibc-OTsEL5/glibc-2.27/csu/../csu/libc-start.c:310

SUMMARY: AddressSanitizer: heap-buffer-overflow MagickCore/fourier.c:305:18 in ComplexImages

```

Thanks.


### System Configuration
<!-- Tell us about the environment where you are experiencing the bug -->

- ImageMagick version:
Version: ImageMagick 7.0.8-50 Q16 x86_64 2019-06-17 https://imagemagick.org

- Environment (Operating system, version and so on):
Description:	Ubuntu 18.04.1 LTS
Release:	18.04
Codename: bionic

- Additional information:
CC=clang-7 CXX=clang++-7 ./configure --disable-openmp
<!-- Thanks for reporting the issue to ImageMagick! -->

heap-buffer-overflow in MagickCore/fourier.c:305:45 in ComplexImages
This is a GitHub Issue
repo:ImageMagick
owner:ImageMagick
Title : heap-buffer-overflow in MagickCore/fourier.c:305:45 in ComplexImages
Issue date:

--- start body ---
### Prerequisites

- [x] I have written a descriptive issue title
- [x] I have verified that I am using the latest version of ImageMagick
- [x] I have searched [open](https://github.com/ImageMagick/ImageMagick/issues) and [closed](https://github.com/ImageMagick/ImageMagick/issues?q=is%3Aissue+is%3Aclosed) issues to ensure it has not already been reported

### Description
<!-- A description of the bug or feature -->
There's a heap-buffer-overflow in MagickCore/fourier.c:305:45 in ComplexImages.


### Steps to Reproduce
<!-- List of steps, sample code, failing test or link to a project that reproduces the behavior.
     Make sure you place a stack trace inside a code (```) block to avoid linking unrelated issues -->
run_cmd:
`magick -seed 0 -treedepth 71 "(" magick:logo +repage ")" "(" magick:granite -white-threshold 0% -cycle 256 -lat 815  ")" -bordercolor rgb"("101,151,20")" -blue-primary 638,241  -print "0O." -complex multiply   tmp `

Second one also can trigger.
cmd:
`magick -seed 0 "(" magick:logo +repage ")" "(" magick:logo +repage ")" -render -size 2872 -complex multiply -quiet   tmp
`

Here's ASAN result.
```
==16842==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x61e000000a80 at pc 0x7fea5bb0c52f bp 0x7fff5c11c590 sp 0x7fff5c11c588
READ of size 4 at 0x61e000000a80 thread T0
    #0 0x7fea5bb0c52e in ComplexImages MagickCore/fourier.c:305:45
    #1 0x7fea5b3328c1 in CLIListOperatorImages MagickWand/operation.c:3890:22
    #2 0x7fea5b33e34e in CLIOption MagickWand/operation.c:5276:14
    #3 0x7fea5b17fa99 in ProcessCommandOptions MagickWand/magick-cli.c:477:7
    #4 0x7fea5b180d0a in MagickImageCommand MagickWand/magick-cli.c:796:5
    #5 0x7fea5b1caba1 in MagickCommandGenesis MagickWand/mogrify.c:185:14
    #6 0x526f95 in MagickMain utilities/magick.c:149:10
    #7 0x5268e1 in main utilities/magick.c:180:10
    #8 0x7fea55c41b96 in __libc_start_main /build/glibc-OTsEL5/glibc-2.27/csu/../csu/libc-start.c:310
    #9 0x41b069 in _start (install/bin/magick+0x41b069)

0x61e000000a80 is located 0 bytes to the right of 2560-byte region [0x61e000000080,0x61e000000a80)
allocated by thread T0 here:
    #0 0x4e6200 in __interceptor_posix_memalign (install/bin/magick+0x4e6200)
    #1 0x7fea5bbb9666 in AcquireAlignedMemory MagickCore/memory.c:265:7
    #2 0x7fea5b910d5c in AcquireCacheNexusPixels MagickCore/cache.c:4968:37
    #3 0x7fea5b8fe1c4 in SetPixelCacheNexusPixels MagickCore/cache.c:5076:12
    #4 0x7fea5b8f5b05 in GetVirtualPixelCacheNexus MagickCore/cache.c:2751:10
    #5 0x7fea5b913f36 in GetCacheViewVirtualPixels MagickCore/cache-view.c:664:10
    #6 0x7fea5bb0ae5d in ComplexImages MagickCore/fourier.c:250:8
    #7 0x7fea5b3328c1 in CLIListOperatorImages MagickWand/operation.c:3890:22
    #8 0x7fea5b33e34e in CLIOption MagickWand/operation.c:5276:14
    #9 0x7fea5b17fa99 in ProcessCommandOptions MagickWand/magick-cli.c:477:7
    #10 0x7fea5b180d0a in MagickImageCommand MagickWand/magick-cli.c:796:5
    #11 0x7fea5b1caba1 in MagickCommandGenesis MagickWand/mogrify.c:185:14
    #12 0x526f95 in MagickMain utilities/magick.c:149:10
    #13 0x5268e1 in main utilities/magick.c:180:10
    #14 0x7fea55c41b96 in __libc_start_main /build/glibc-OTsEL5/glibc-2.27/csu/../csu/libc-start.c:310

SUMMARY: AddressSanitizer: heap-buffer-overflow MagickCore/fourier.c:305:45 in ComplexImages

```

Here's the ASAN result for second cmd
```
==16863==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x7f2a0831b800 at pc 0x7f2a1747e649 bp 0x7ffd7c094350 sp 0x7ffd7c094348
WRITE of size 4 at 0x7f2a0831b800 thread T0
    #0 0x7f2a1747e648 in ComplexImages MagickCore/fourier.c:305:18
    #1 0x7f2a16ca48c1 in CLIListOperatorImages MagickWand/operation.c:3890:22
    #2 0x7f2a16cb034e in CLIOption MagickWand/operation.c:5276:14
    #3 0x7f2a16af1a99 in ProcessCommandOptions MagickWand/magick-cli.c:477:7
    #4 0x7f2a16af2d0a in MagickImageCommand MagickWand/magick-cli.c:796:5
    #5 0x7f2a16b3cba1 in MagickCommandGenesis MagickWand/mogrify.c:185:14
    #6 0x526f95 in MagickMain utilities/magick.c:149:10
    #7 0x5268e1 in main utilities/magick.c:180:10
    #8 0x7f2a115b3b96 in __libc_start_main /build/glibc-OTsEL5/glibc-2.27/csu/../csu/libc-start.c:310
    #9 0x41b069 in _start (install/bin/magick+0x41b069)

0x7f2a0831b800 is located 0 bytes to the right of 3686400-byte region [0x7f2a07f97800,0x7f2a0831b800)
allocated by thread T0 here:
    #0 0x4e6200 in __interceptor_posix_memalign (install/bin/magick+0x4e6200)
    #1 0x7f2a1752b666 in AcquireAlignedMemory MagickCore/memory.c:265:7
    #2 0x7f2a172746ac in OpenPixelCache MagickCore/cache.c:3728:46
    #3 0x7f2a1727a991 in GetImagePixelCache MagickCore/cache.c:1754:18
    #4 0x7f2a17280c59 in SyncImagePixelCache MagickCore/cache.c:5494:28
    #5 0x7f2a174defc1 in SetImageStorageClass MagickCore/image.c:2627:10
    #6 0x7f2a1747c4f7 in ComplexImages MagickCore/fourier.c:185:7
    #7 0x7f2a16ca48c1 in CLIListOperatorImages MagickWand/operation.c:3890:22
    #8 0x7f2a16cb034e in CLIOption MagickWand/operation.c:5276:14
    #9 0x7f2a16af1a99 in ProcessCommandOptions MagickWand/magick-cli.c:477:7
    #10 0x7f2a16af2d0a in MagickImageCommand MagickWand/magick-cli.c:796:5
    #11 0x7f2a16b3cba1 in MagickCommandGenesis MagickWand/mogrify.c:185:14
    #12 0x526f95 in MagickMain utilities/magick.c:149:10
    #13 0x5268e1 in main utilities/magick.c:180:10
    #14 0x7f2a115b3b96 in __libc_start_main /build/glibc-OTsEL5/glibc-2.27/csu/../csu/libc-start.c:310

SUMMARY: AddressSanitizer: heap-buffer-overflow MagickCore/fourier.c:305:18 in ComplexImages

```

Thanks.


### System Configuration
<!-- Tell us about the environment where you are experiencing the bug -->

- ImageMagick version:
Version: ImageMagick 7.0.8-50 Q16 x86_64 2019-06-17 https://imagemagick.org

- Environment (Operating system, version and so on):
Description:	Ubuntu 18.04.1 LTS
Release:	18.04
Codename: bionic

- Additional information:
CC=clang-7 CXX=clang++-7 ./configure --disable-openmp
<!-- Thanks for reporting the issue to ImageMagick! -->

--- end body ---
