imagemagick/encoder_label_fuzzer: Use-of-uninitialized-value in ScaleQuantumToChar

2018-05-07T09:56:05
ID OSSFUZZ-8171
Type ossfuzz
Reporter Google
Modified 2018-06-09T15:21:09

Description

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

Detailed report: https://oss-fuzz.com/testcase?key=5701174052257792

Project: imagemagick Fuzzer: libFuzzer_imagemagick_encoder_label_fuzzer Fuzz target binary: encoder_label_fuzzer Job Type: libfuzzer_msan_imagemagick Platform Id: linux

Crash Type: Use-of-uninitialized-value Crash Address: Crash State: ScaleQuantumToChar ColorToNodeId ClassifyImageColors

Sanitizer: memory (MSAN)

Recommended Security Severity: Medium

Regressed: https://oss-fuzz.com/revisions?job=libfuzzer_msan_imagemagick&range=201805060440:201805070439

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=5701174052257792

Issue filed automatically.

See https://github.com/google/oss-fuzz/blob/master/docs/reproducing.md for more information.

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