njs:njs_process_script_fuzzer: Heap-use-after-free in njs_parser_property

Type ossfuzz
Reporter Google
Modified 2020-07-20T20:04:37


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

Detailed Report: https://oss-fuzz.com/testcase?key=5727429946769408

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

Crash Type: Heap-use-after-free READ 2 Crash Address: 0x6250000408c0 Crash State: njs_parser_property njs_parser_optional_chain njs_parser

Sanitizer: address (ASAN)

Recommended Security Severity: High

Regressed: https://oss-fuzz.com/revisions?job=libfuzzer_asan_njs&range=202006090311:202006100312

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=5727429946769408

Issue filed automatically.

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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.