libreoffice:cgmfuzzer: Heap-buffer-overflow in CGM::ImplDoClass7

2020-01-07T13:10:21
ID OSSFUZZ-19888
Type ossfuzz
Reporter Google
Modified 2020-02-06T23:43:12

Description

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

Detailed Report: https://oss-fuzz.com/testcase?key=5658636202541056

Project: libreoffice Fuzzing Engine: libFuzzer Fuzz Target: cgmfuzzer Job Type: libfuzzer_asan_libreoffice Platform Id: linux

Crash Type: Heap-buffer-overflow WRITE 9 Crash Address: 0x6120001cf580 Crash State: CGM::ImplDoClass7 CGM::ImplDoClass CGM::Write

Sanitizer: address (ASAN)

Recommended Security Severity: High

Regressed: https://oss-fuzz.com/revisions?job=libfuzzer_asan_libreoffice&range=201704011633:201704032003

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=5658636202541056

Issue filed automatically.

See https://google.github.io/oss-fuzz/advanced-topics/reproducing for instructions to reproduce this bug locally. 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.

If you need to contact the OSS-Fuzz team with a question, concern, or any other feedback, please file an issue at https://github.com/google/oss-fuzz/issues. Comments on individual Monorail issues are not monitored.

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.