c-blosc2:decompress_fuzzer: Crash in blosc_d

2020-10-09T14:23:13
ID OSSFUZZ-26228
Type ossfuzz
Reporter Google
Modified 2020-11-15T19:54:27

Description

Project: https://github.com/Blosc/c-blosc2.git

Detailed Report: https://oss-fuzz.com/testcase?key=5736707137470464

Project: c-blosc2 Fuzzing Engine: libFuzzer Fuzz Target: decompress_fuzzer Job Type: libfuzzer_asan_i386_c-blosc2 Platform Id: linux

Crash Type: UNKNOWN READ Crash Address: 0x06170af5 Crash State: blosc_d do_job blosc_run_decompression_with_context

Sanitizer: address (ASAN)

Recommended Security Severity: Medium

Crash Revision: https://oss-fuzz.com/revisions?job=libfuzzer_asan_i386_c-blosc2&revision=202010070625

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=5736707137470464

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.

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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.