Dropbear 2020.81

[Matt Johnston]

Hi all,

Dropbear 2020.81 is released to fix interoperability
problems introduced in 2020.79.

Cheers,
Matt

https://matt.ucc.asn.au/dropbear/dropbear.html


2020.81 - 29 October 2020

- Fix regression in 2020.79 which prevented connecting with some SSH 
  implementations. Increase MAX_PROPOSED_ALGO to 50, and print a log 
  message if the limit is hit. This fixes interoperability with sshj 
  library (used by PyCharm), and GoAnywhere.
  Reported by Pirmin Walthert and Piotr Jurkiewicz

- Fix building with non-GCC compilers, reported by Kazuo Kuroi

- Fix potential long delay in dbclient, found by OSS Fuzz

- Fix null pointer dereference crash, found by OSS Fuzz

- libtommath now uses the same random source as Dropbear (in 2020.79 
  and 2020.80 used getrandom() separately)

- Some fuzzing improvements, start of a dbclient fuzzer