ffmpeg: Index-out-of-bounds in vlc_decode_block

2017-05-10T00:43:40
ID OSSFUZZ-1468
Type ossfuzz
Reporter Google
Modified 2017-06-11T13:03:51

Description

Project: https://git.ffmpeg.org/ffmpeg.git

Detailed report: https://oss-fuzz.com/testcase?key=5235964056174592

Project: ffmpeg Fuzzer: libFuzzer_ffmpeg_AV_CODEC_ID_MIMIC_fuzzer Fuzz target binary: ffmpeg_AV_CODEC_ID_MIMIC_fuzzer Job Type: libfuzzer_ubsan_ffmpeg Platform Id: linux

Crash Type: Index-out-of-bounds Crash Address: Crash State: vlc_decode_block decode mimic_decode_frame

Sanitizer: undefined (UBSAN)

Recommended Security Severity: Medium

Regressed: https://oss-fuzz.com/revisions?job=libfuzzer_ubsan_ffmpeg&range=201705081931:201705091623

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=5235964056174592

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.