A Buffer Overflow in Wireshark before 4.2.0 allows a remote attacker to cause a denial of service via the wsutil/to_str.c, and format_fractional_part_nsecs components. NOTE: this is disputed by the vendor because neither release 4.2.0 nor any other release was affected.
https://github.com/wireshark/wireshark/commit/c3720cff158c265dec2a0c6104b1d65954ae6bfd
https://gist.github.com/1047524396/c50ad17e9a1a18990043a7cd27814c78