cryptofuzz:cryptofuzz-openssl: Heap-use-after-free in aes_ocb_set_ctx_params

2019-09-20T14:20:10
ID OSSFUZZ-17538
Type ossfuzz
Reporter Google
Modified 2019-11-02T15:36:15

Description

Project: https://github.com/guidovranken/cryptofuzz.git

Detailed Report: https://oss-fuzz.com/testcase?key=5732991560581120

Project: cryptofuzz Fuzzing Engine: libFuzzer Fuzz Target: cryptofuzz-openssl Job Type: libfuzzer_asan_i386_cryptofuzz Platform Id: linux

Crash Type: Heap-use-after-free WRITE 4 Crash Address: 0xbf703490 Crash State: aes_ocb_set_ctx_params evp_do_ciph_ctx_setparams EVP_CIPHER_CTX_ctrl

Sanitizer: address (ASAN)

Recommended Security Severity: High

Regressed: https://oss-fuzz.com/revisions?job=libfuzzer_asan_i386_cryptofuzz&range=201909190228:201909200230

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=5732991560581120

Issue filed automatically.

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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.