gnutls: Use-of-uninitialized-value in __gmpn_tdiv_qr

2017-08-19T08:26:25
ID OSSFUZZ-3086
Type ossfuzz
Reporter Google
Modified 2017-09-19T13:05:45

Description

Project: https://gitlab.com/gnutls/gnutls.git

Detailed report: https://oss-fuzz.com/testcase?key=5744749560463360

Project: gnutls Fuzzer: libFuzzer_gnutls_srp_client_fuzzer Fuzz target binary: gnutls_srp_client_fuzzer Job Type: libfuzzer_msan_gnutls Platform Id: linux

Crash Type: Use-of-uninitialized-value Crash Address: Crash State: __gmpn_tdiv_qr redcify __gmpn_powm

Sanitizer: memory (MSAN)

Recommended Security Severity: Medium

Regressed: https://oss-fuzz.com/revisions?job=libfuzzer_msan_gnutls&range=201708160415:201708190414

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=5744749560463360

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.

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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