[exim-dev] [Bug 2166] New: Segfaults when remote server drop…

Góra strony
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Autor: admin
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Dla: exim-dev
Temat: [exim-dev] [Bug 2166] New: Segfaults when remote server drop connections before banner
https://bugs.exim.org/show_bug.cgi?id=2166

            Bug ID: 2166
           Summary: Segfaults when remote server drop connections before
                    banner
           Product: Exim
           Version: 4.89
          Hardware: x86
                OS: Linux
            Status: NEW
          Severity: bug
          Priority: medium
         Component: Transports
          Assignee: nigel@???
          Reporter: chirila@???
                CC: exim-dev@???


It seems the when a SMTP transport tries to deliver a message and the remote
server drops the connection before the banner is returned, the SMTP transport
segfaults and the messages is frozen.

Example case where I managed to replicate the same problem:

====
2017-09-14 01:11:44 1dsTvi-0001q4-Ll == test@???
R=spamexperts T=remote_smtp defer (-1): smtp transport process returned
non-zero status 0x000b: terminated by signal 11
2017-09-14 01:11:44 1dsTvi-0001q4-Ll Frozen
====

On the remote server I have another Exim with simple acl_smtp_connect:

====
acl_connect:
  drop
    message = Your IP has been blacklisted
====


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