libreoffice/ww6fuzzer: Heap-use-after-free in BigPtrArray::Index2Block

2018-01-24T00:03:11
ID OSSFUZZ-5628
Type ossfuzz
Reporter Google
Modified 2019-03-04T16:56:33

Description

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

Detailed report: https://oss-fuzz.com/testcase?key=4527944065089536

Project: libreoffice Fuzzer: libFuzzer_libreoffice_ww6fuzzer Fuzz target binary: ww6fuzzer Job Type: libfuzzer_asan_libreoffice Platform Id: linux

Crash Type: Heap-use-after-free READ 8 Crash Address: 0x625000a0c048 Crash State: BigPtrArray::Index2Block BigPtrArray::operator SwNodeIndex::SwNodeIndex

Sanitizer: address (ASAN)

Recommended Security Severity: High

Regressed: https://oss-fuzz.com/revisions?job=libfuzzer_asan_libreoffice&range=201705011619:201705021619

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=4527944065089536

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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