[Dovecot-news] v2.3.10.1 released

[Aki Tuomi]

We are pleased to release v2.3.10.1 Please find it from locations below:

https://dovecot.org/releases/2.3/dovecot-2.3.10.1.tar.gz
https://dovecot.org/releases/2.3/dovecot-2.3.10.1.tar.gz.sig
Binary packages in https://repo.dovecot.org/
Docker images in https://hub.docker.com/r/dovecot/dovecot

Aki Tuomi
Open-Xchange oy

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- CVE-2020-10957: lmtp/submission: A client can crash the server by
  sending a NOOP command with an invalid string parameter. This occurs
  particularly for a parameter that doesn't start with a double quote.
  This applies to all SMTP services, including submission-login, which
  makes it possible to crash the submission service without
  authentication.
- CVE-2020-10958: lmtp/submission: Sending many invalid or unknown
  commands can cause the server to access freed memory, which can lead
  to a server crash. This happens when the server closes the connection
  with a "421 Too many invalid commands" error. The bad command limit
  depends on the service (lmtp or submission) and varies between 10 to
  20 bad commands.
- CVE-2020-10967: lmtp/submission: Issuing the RCPT command with an
  address that has the empty quoted string as local-part causes the
  lmtp service to crash.
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