graphicsmagick/coder_MIFF_fuzzer: Use-of-uninitialized-value in deflate_slow

2018-12-16T00:44:59
ID OSSFUZZ-11876
Type ossfuzz
Reporter Google
Modified 2019-01-16T16:25:29

Description

Project: http://hg.code.sf.net/p/graphicsmagick/code

Detailed report: https://oss-fuzz.com/testcase?key=5689395047301120

Project: graphicsmagick Fuzzer: libFuzzer_graphicsmagick_coder_MIFF_fuzzer Fuzz target binary: coder_MIFF_fuzzer Job Type: libfuzzer_msan_graphicsmagick Platform Id: linux

Crash Type: Use-of-uninitialized-value Crash Address: Crash State: deflate_slow deflate WriteMIFFImage

Sanitizer: memory (MSAN)

Recommended Security Severity: Medium

Regressed: https://oss-fuzz.com/revisions?job=libfuzzer_msan_graphicsmagick&range=201805110540:201805251618

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=5689395047301120

Issue filed automatically.

See https://github.com/google/oss-fuzz/blob/master/docs/reproducing.md for instructions to reproduce this bug locally.

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