botan/invert: Use-of-uninitialized-value in Botan::word_add

2018-03-01T06:21:23
ID OSSFUZZ-6626
Type ossfuzz
Reporter Google
Modified 2018-04-01T15:20:46

Description

Project: https://github.com/randombit/botan.git

Detailed report: https://oss-fuzz.com/testcase?key=5113093358092288

Project: botan Fuzzer: libFuzzer_botan_invert Fuzz target binary: invert Job Type: libfuzzer_msan_botan Platform Id: linux

Crash Type: Use-of-uninitialized-value Crash Address: Crash State: Botan::word_add Botan::bigint_cnd_abs Botan::ct_inverse_mod_odd_modulus

Sanitizer: memory (MSAN)

Recommended Security Severity: Medium

Regressed: https://oss-fuzz.com/revisions?job=libfuzzer_msan_botan&range=201802280517:201803010517

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=5113093358092288

Issue filed automatically.

See https://github.com/google/oss-fuzz/blob/master/docs/reproducing.md for more information.

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