skia/api_path_measure: Heap-buffer-overflow in compute_pos_tan

2019-02-09T11:09:42
ID OSSFUZZ-13013
Type ossfuzz
Reporter Google
Modified 2019-03-17T15:28:30

Description

Project: https://skia.googlesource.com/skia.git

Detailed report: https://oss-fuzz.com/testcase?key=5634563479437312

Project: skia Fuzzer: libFuzzer_skia_api_path_measure Fuzz target binary: api_path_measure Job Type: libfuzzer_asan_skia Platform Id: linux

Crash Type: Heap-buffer-overflow READ 4 Crash Address: 0x60b0000006a8 Crash State: compute_pos_tan SkContourMeasure::getPosTan fuzz_PathMeasure

Sanitizer: address (ASAN)

Recommended Security Severity: Medium

Regressed: https://oss-fuzz.com/revisions?job=libfuzzer_asan_skia&range=201902060304:201902090304

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=5634563479437312

Issue filed automatically.

See https://skia.org/dev/testing/fuzz 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.

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