group.of.nepali.translators team mailing list archive

[Sergio Durigan Junior <1971489@xxxxxxxxxxxxxxxxxx>]

Thanks for taking the time to test the patch, Kamal :-).

As Athos already mentioned above, we will need a reproducer in order to
move forward with the SRU.  Unfortunately this means that the bug will
be put in our queue until someone has the time to work more on it and
come up with a way to reproduce the problem.

As a side note: because Kinetic is not affected by the bug, I've marked
its task as "Fix Released".

Thanks.

** Changed in: exim4 (Ubuntu)
       Status: Confirmed => Fix Released

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https://bugs.launchpad.net/bugs/1971489

Title:
  exim4 GnuTLS breakage with outgoing TLS 1.3 "Resource temporarily
  unavailable"

Status in exim4 package in Ubuntu:
  Fix Released
Status in exim4 source package in Trusty:
  Won't Fix
Status in exim4 source package in Xenial:
  Won't Fix
Status in exim4 source package in Bionic:
  Triaged

Bug description:
  Very recently, my (unchanged for years) bionic exim4 flow ( outgoing
  SMTP -> smtp.canonical.com ) abruptly stopped working, with exim4 log
  as follows:

    SMTP<< 220 smtp-relay-canonical-1.canonical.com ESMTP Postfix (Ubuntu)
    SMTP>> EHLO myhostname
    SMTP<< 250-smtp-relay-canonical-1.canonical.com
           250-PIPELINING
           250-SIZE 61440000
           250-VRFY
           250-ETRN
           250-STARTTLS
           250-ENHANCEDSTATUSCODES
           250-8BITMIME
           250-DSN
           250-SMTPUTF8
           250 CHUNKING
    SMTP>> STARTTLS
    SMTP<< 220 2.0.0 Ready to start TLS
    SMTP>> EHLO myhostname
    H=smtp.canonical.com [185.125.188.121] TLS error on connection (recv): Resource temporarily unavailable, try again.
    SMTP(close)>>
    H=smtp.canonical.com [185.125.188.121]: Remote host closed connection in response to EHLO myhostname

  This appears to be a manifestation of this exim4 bug which was fixed in exim4 (4.92): https://bugs.exim.org/show_bug.cgi?id=2359
  See also: https://www.mail-archive.com/exim-users@xxxxxxxx/msg53121.html

  I found and installed a PPA version of exim4 (4.94) for bionic, which
  did fix the problem for me.

  I believe that all Ubuntu versions which supply exim4 < 4.92 {Bionic,
  Xenial, Trusty} are affected by this bug, which leaves exim4
  mysteriously broken when the server side happens to move to TLS 1.3.

  I suggest updating exim4 on the affected Ubuntu versions.

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