matio:matio_fuzzer: Heap-buffer-overflow in Mat_VarRead4

2019-08-31T06:02:31
ID OSSFUZZ-16874
Type ossfuzz
Reporter Google
Modified 2019-10-04T15:41:36

Description

Project: git://git.code.sf.net/p/matio/matio

Detailed Report: https://oss-fuzz.com/testcase?key=5166851121741824

Project: matio Fuzzing Engine: libFuzzer Fuzz Target: matio_fuzzer Job Type: libfuzzer_asan_i386_matio Platform Id: linux

Crash Type: Heap-buffer-overflow WRITE 4 Crash Address: 0xf26ff550 Crash State: Mat_VarRead4 ReadData Mat_VarReadDataAll

Sanitizer: address (ASAN)

Recommended Security Severity: High

Regressed: https://oss-fuzz.com/revisions?job=libfuzzer_asan_i386_matio&range=201908290221:201908300224

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=5166851121741824

Issue filed automatically.

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

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.