njs:njs_process_script_fuzzer: Use-of-uninitialized-value in njs_string_prototype_split

2019-12-13T19:06:51
ID OSSFUZZ-19478
Type ossfuzz
Reporter Google
Modified 2020-06-02T14:43:54

Description

Project: http://hg.nginx.org/njs

Detailed Report: https://oss-fuzz.com/testcase?key=5712452738351104

Project: njs Fuzzing Engine: libFuzzer Fuzz Target: njs_process_script_fuzzer Job Type: libfuzzer_msan_njs Platform Id: linux

Crash Type: Use-of-uninitialized-value Crash Address: Crash State: njs_string_prototype_split njs_function_native_call njs_vmcode_interpreter

Sanitizer: memory (MSAN)

Recommended Security Severity: Medium

Regressed: https://oss-fuzz.com/revisions?job=libfuzzer_msan_njs&range=201911190443:201911200453

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=5712452738351104

Issue filed automatically.

See https://google.github.io/oss-fuzz/advanced-topics/reproducing for instructions to reproduce this bug locally. 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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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.