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[slackware-security]  postfix (SSA:2024-022-01)

New postfix packages are available for Slackware 15.0 and -current to
fix a security issue.


Here are the details from the Slackware 15.0 ChangeLog:
+--------------------------+
patches/packages/postfix-3.6.14-i586-1_slack15.0.txz:  Upgraded.
  Security (inbound SMTP smuggling): with "smtpd_forbid_bare_newline
  = normalize" (default "no" for Postfix < 3.9), the Postfix
  SMTP server requires the standard End-of-DATA sequence
  <CR><LF>.<CR><LF>, and otherwise allows command or message
  content lines ending in the non-standard <LF>, processing
  them as if the client sent the standard <CR><LF>.
  The alternative setting, "smtpd_forbid_bare_newline = reject"
  will reject any command or message that contains a bare
  <LF>, and is more likely to cause problems with legitimate
  clients.
  For backwards compatibility, local clients are excluded by
  default with "smtpd_forbid_bare_newline_exclusions =
  $mynetworks".
  For more information, see:
    https://www.postfix.org/smtp-smuggling.html
  (* Security fix *)
+--------------------------+


Where to find the new packages:
+-----------------------------+

Thanks to the friendly folks at the OSU Open Source Lab
(http://osuosl.org) for donating FTP and rsync hosting
to the Slackware project!  :-)

Also see the "Get Slack" section on http://slackware.com for
additional mirror sites near you.

Updated package for Slackware 15.0:
ftp://ftp.slackware.com/pub/slackware/slackware-15.0/patches/packages/postfix-3.6.14-i586-1_slack15.0.txz

Updated package for Slackware x86_64 15.0:
ftp://ftp.slackware.com/pub/slackware/slackware64-15.0/patches/packages/postfix-3.6.14-x86_64-1_slack15.0.txz

Updated package for Slackware -current:
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/n/postfix-3.8.5-i586-1.txz

Updated package for Slackware x86_64 -current:
ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/n/postfix-3.8.5-x86_64-1.txz


MD5 signatures:
+-------------+

Slackware 15.0 package:
294738922ff08821267867f0bc877f20  postfix-3.6.14-i586-1_slack15.0.txz

Slackware x86_64 15.0 package:
e82bb102cc325850e48aca41f909e812  postfix-3.6.14-x86_64-1_slack15.0.txz

Slackware -current package:
7e088581a14eb986f767bc08d9203103  n/postfix-3.8.5-i586-1.txz

Slackware x86_64 -current package:
50f7d14d0ddc0ce62e29cb55a2cffa31  n/postfix-3.8.5-x86_64-1.txz


Installation instructions:
+------------------------+

Upgrade the package as root:
# upgradepkg postfix-3.6.14-i586-1_slack15.0.txz

Restart the postfix server:
# /etc/rc.d/rc.postfix restart


+-----+

Slackware Linux Security Team
http://slackware.com/gpg-key
security@slackware.com

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