From: Slackware Security Team <security@slackware.com>
To: slackware-security@slackware.com
Subject: [slackware-security] proftpd (SSA:2026-300-01)
Date: Tue, 27 Oct 2026 17:22:23 -0700 (PDT)





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[slackware-security] proftpd (SSA:2026-300-01)

New proftpd 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/proftpd-1.3.9e-i586-1_slack15.0.txz: Upgraded.
This update fixes a security issue:
Support opt-in use of Huffman encoding only for SSH compression, to mitigate
possible chosen-plaintext attack against concurrent channels sharing same
SSH connection.
For more information, see:
https://github.com/proftpd/proftpd/issues/2366
(* 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/proftpd-1.3.9e-i586-1_slack15.0.txz

Updated package for Slackware x86_64 15.0:
ftp://ftp.slackware.com/pub/slackware/slackware64-15.0/patches/packages/proftpd-1.3.9e-x86_64-1_slack15.0.txz

Updated package for Slackware -current:
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/n/proftpd-1.3.9e-i686-1.txz

Updated package for Slackware x86_64 -current:
ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/n/proftpd-1.3.9e-x86_64-1.txz


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

Slackware 15.0 package:
0520380846c0214b6755778b96dbb7d6 proftpd-1.3.9e-i586-1_slack15.0.txz

Slackware x86_64 15.0 package:
3f44012a5e5a4dddd2b9b80dcd590944 proftpd-1.3.9e-x86_64-1_slack15.0.txz

Slackware -current package:
9710872e479d2cfa884ac6e6ebb76bb7 n/proftpd-1.3.9e-i686-1.txz

Slackware x86_64 -current package:
1b91a0a1ece3a496b9b88fa013af9091 n/proftpd-1.3.9e-x86_64-1.txz


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

Upgrade the package as root:
# upgradepkg proftpd-1.3.9e-i586-1_slack15.0.txz


+-----+

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

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