libreoffice/ww8fuzzer: Heap-buffer-overflow in WW8_BRCVer9::brcType

2017-11-24T14:14:15
ID OSSFUZZ-4414
Type ossfuzz
Reporter Google
Modified 2017-12-25T14:05:43

Description

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

Detailed report: https://oss-fuzz.com/testcase?key=5152071457177600

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

Crash Type: Heap-buffer-overflow READ 1 Crash Address: 0x60d000039558 Crash State: WW8_BRCVer9::brcType WW8TabDesc::CalcDefaults WW8TabDesc::WW8TabDesc

Sanitizer: address (ASAN)

Recommended Security Severity: Medium

Regressed: https://oss-fuzz.com/revisions?job=libfuzzer_asan_libreoffice&range=201711230525:201711240526

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=5152071457177600

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.

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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