libreoffice/ww8fuzzer: Bad-cast to SwRangeRedline from invalid vptr in SwRangeRedline::CopyToSection

2017-12-05T02:30:41
ID OSSFUZZ-4527
Type ossfuzz
Reporter Google
Modified 2019-03-04T16:56:33

Description

Detailed report: https://oss-fuzz.com/testcase?key=6500810910334976

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

Crash Type: Bad-cast Crash Address: 0x0000138beb30 Crash State: Bad-cast to SwRangeRedline from invalid vptr SwRangeRedline::CopyToSection SwRangeRedline::Hide

Sanitizer: undefined (UBSAN)

Recommended Security Severity: High

Regressed: https://oss-fuzz.com/revisions?job=libfuzzer_ubsan_libreoffice&range=201712030526:201712040523

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=6500810910334976

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.

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