yara/macho_fuzzer: Use-of-uninitialized-value in macho_parse_file_32_be

2017-11-22T08:11:23
ID OSSFUZZ-4375
Type ossfuzz
Reporter Google
Modified 2017-12-23T14:05:25

Description

Project: https://github.com/VirusTotal/yara.git

Detailed report: https://oss-fuzz.com/testcase?key=5168348309487616

Project: yara Fuzzer: libFuzzer_yara_macho_fuzzer Fuzz target binary: macho_fuzzer Job Type: libfuzzer_msan_yara Platform Id: linux

Crash Type: Use-of-uninitialized-value Crash Address: Crash State: macho_parse_file_32_be macho__load yr_modules_load

Sanitizer: memory (MSAN)

Recommended Security Severity: Medium

Regressed: https://oss-fuzz.com/revisions?job=libfuzzer_msan_yara&range=201711210612:201711220613

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=5168348309487616

Issue filed automatically.

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

This bug is subject to a 90 day disclosure deadline. If 90 days elapse without an upstream patch, then the bug report will automatically become visible to the public.

When you fix this bug, please * mention the fix revision(s). * state whether the bug was a short-lived regression or an old bug in any stable releases. * add any other useful information. This information can help downstream consumers.

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