libwebp/fuzz_demux_api: Heap-buffer-overflow in GetLE24

2018-06-27T05:54:53
ID OSSFUZZ-9123
Type ossfuzz
Reporter Google
Modified 2018-08-02T15:24:41

Description

Project: https://chromium.googlesource.com/webm/libwebp

Detailed report: https://oss-fuzz.com/testcase?key=5095485239984128

Project: libwebp Fuzzer: libFuzzer_libwebp_fuzz_demux_api Fuzz target binary: fuzz_demux_api Job Type: libfuzzer_asan_libwebp Platform Id: linux

Crash Type: Heap-buffer-overflow READ 1 Crash Address: 0x607000000455 Crash State: GetLE24 WebPMuxCreateInternal fuzz_demux_api.c

Sanitizer: address (ASAN)

Recommended Security Severity: Medium

Regressed: https://oss-fuzz.com/revisions?job=libfuzzer_asan_libwebp&range=201806250550:201806260522

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=5095485239984128

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.

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