imagemagick:ping_miff_fuzzer: Heap-buffer-overflow in PushDoublePixel

Project:
https://github.com/imagemagick/imagemagick.git

Detailed Report: https://oss-fuzz.com/testcase?key=5700086448783360

Project: imagemagick
Fuzzing Engine: libFuzzer
Fuzz Target: ping_miff_fuzzer
Job Type: libfuzzer_asan_imagemagick
Platform Id: linux

Crash Type: Heap-buffer-overflow READ 1
Crash Address: 0x60d0000004d8
Crash State:
PushDoublePixel
ImportCMYKAQuantum
ImportQuantumPixels

Sanitizer: address (ASAN)

Recommended Security Severity: Medium

Regressed: https://oss-fuzz.com/revisions?job=libfuzzer_asan_imagemagick&range=201910220644:201910230307

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=5700086448783360

Issue manually filed by: alex.gaynor

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This bug is subject to a 90 day disclosure deadline. If 90 days elapse
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