libreoffice/ww8fuzzer: Crash in __dynamic_cast

2019-01-11T16:03:50
ID OSSFUZZ-12476
Type ossfuzz
Reporter Google
Modified 2019-02-21T16:24:35

Description

Project: git://anongit.freedesktop.org/libreoffice/core

Detailed report: https://oss-fuzz.com/testcase?key=5766621702914048

Project: libreoffice Fuzzer: libFuzzer_libreoffice_ww8fuzzer Fuzz target binary: ww8fuzzer Job Type: libfuzzer_ubsan_libreoffice Platform Id: linux

Crash Type: UNKNOWN READ Crash Address: 0xffffffff00000000 Crash State: __dynamic_cast HandleDynamicTypeCacheMiss SwRangeRedline::operator<

Sanitizer: undefined (UBSAN)

Recommended Security Severity: High

Regressed: https://oss-fuzz.com/revisions?job=libfuzzer_ubsan_libreoffice&range=201901070313:201901110307

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=5766621702914048

Issue filed automatically.

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

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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