harfbuzz: Use-of-uninitialized-value in OT::RangeRecord::cmp

2017-04-04T15:50:29
ID OSSFUZZ-986
Type ossfuzz
Reporter Google
Modified 2017-07-03T13:04:31

Description

Detailed report: https://oss-fuzz.com/testcase?key=5924299061854208

Project: harfbuzz Fuzzer: libFuzzer_harfbuzz_hb-fuzzer Fuzz target binary: hb-fuzzer Job Type: libfuzzer_msan_harfbuzz Platform Id: linux

Crash Type: Use-of-uninitialized-value Crash Address: Crash State: OT::RangeRecord::cmp (/mnt/

Sanitizer: memory (MSAN)

Recommended Security Severity: Medium

Reproducer Testcase: https://oss-fuzz.com/download/AMIfv94kR8iQc9Z-VKmFt_GXhxuoOFakxeiOjuaLeMaazZjfCbOZOkX1RxA-teuN6dvnF2SPT20FW7_J2OQwBF42T9bYtCh50o26Z1v7Ab46WNmhLqmvzO8grbhounSSwiyCu9I0502jeeP6cRzCiA0Sd7ndvUzoKl49K1Rr4Mk9jPPK2nf4R7Nj5GZWmmSRt3B5sZS0E9ElOGTV1KIfOxoOatsXgoTl1jSfgOnNDv0M6CFnmSOoUK13o6G3qlmEQiiwDJApgNtUuOE85h8yZdoJhWFbuI-dLGYt4xpOEY8GgCXgBXkpFkp0KL9c4D4L0Ff1qMNiUIJUoDXJ5csNocf-gXf21iV_7edhrkwUly6DoufwZhrVHfVZ4lr_9vIT3cp6bB9km2fj?testcase_id=5924299061854208

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.