libreoffice: Crash in SVBT16ToShort

2017-08-06T18:17:01
ID OSSFUZZ-2877
Type ossfuzz
Reporter Google
Modified 2017-09-25T13:05:00

Description

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

Detailed report: https://oss-fuzz.com/testcase?key=4647189592670208

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

Crash Type: UNKNOWN READ Crash Address: 0x620000017d80 Crash State: SVBT16ToShort wwSprmParser::GetSprmId WW8PLCFx_SEPX::Find4Sprms

Sanitizer: address (ASAN)

Recommended Security Severity: Medium

Regressed: https://oss-fuzz.com/revisions?job=libfuzzer_asan_libreoffice&range=201705312029:201706020148

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=4647189592670208

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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