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Bug Dovecot auth + Exim

Discussion in 'General Discussion' started by diego.rodrigues, Mar 30, 2011.

  1. diego.rodrigues

    diego.rodrigues Registered

    Mar 29, 2011
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    Could someone tell me if the cpanel already corrected this bug, and if so where can I find this fix thanks

    Bug 667
    Summary: Dovecot authentication bug - missing close

    I'm using SMTP auth with Exim authenticating against Dovecot's auth
    socket. The (excellent) SMTP test tool "swaks"
    ( tries multiple auth mechanismus
    consecutively which leads to the following message in Dovecot's log

    Error: auth(default): BUG: Authentication client gave a PID 6738 of
    existing connection

    This bug can be fixed by adding a "close(fd);" in src/auths/dovecot.c.
    Without the close()-call Exim does not shut down the connection and a
    subsequent connection (announcing the same client PID during
    handshake) will fail. You'll most likely see the above warning message
    if a SMTP client tries multiple auth mechanisms with a wrong password.

    Would be nice to have this fixed upstream in the Exim source.

    source: bad link
    #1 diego.rodrigues, Mar 30, 2011
    Last edited by a moderator: Apr 14, 2011
  2. cPanelNick

    cPanelNick Administrator
    Staff Member

    Mar 9, 2015
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    DataCenter Provider
    All cpanel published versions of Exim are currently at 4.69:29, which should have this patch included.

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