aspell:aspell_fuzzer: Heap-buffer-overflow in acommon::DecodeUtf8::decode

2019-09-15T02:43:10
ID OSSFUZZ-17187
Type ossfuzz
Reporter Google
Modified 2019-10-17T15:41:13

Description

Project: https://github.com/gnuaspell/aspell.git

Detailed Report: https://oss-fuzz.com/testcase?key=5688876424757248

Project: aspell Fuzzing Engine: libFuzzer Fuzz Target: aspell_fuzzer Job Type: libfuzzer_asan_aspell Platform Id: linux

Crash Type: Heap-buffer-overflow READ 1 Crash Address: 0x6020000001d2 Crash State: acommon::DecodeUtf8::decode acommon::Convert::convert acommon::ConvP::operator

Sanitizer: address (ASAN)

Recommended Security Severity: Medium

Regressed: https://oss-fuzz.com/revisions?job=libfuzzer_asan_aspell&range=201907310225:201908010230

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=5688876424757248

Issue filed automatically.

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

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.