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Trustix Secure Linux Advisory: proftpd

Sep 29, 2003, 19:47 (0 Talkback[s])

Trustix Secure Linux Security Advisory #2003-0037
Package name: proftpd
Summary: remote exploit if upload enabled
Date: 2003-09-27
Affected versions: TSL 1.2, 1.5, 2.0

Package description:
ProFTPd is an enhanced FTP server with a focus toward simplicity, security, and ease of configuration. It features a very Apache-like configuration syntax, and a highly customizable server infrastructure, including support for multiple 'virtual' FTP servers, anonymous FTP, and permission-based directory visibility.

Problem description:
An error exists in the ASCII upload handling of Proftpd version 1.2.7 and later that can be used to trigger an buffer overflow and thus execute arbitrary code. This has now been fixed.

Action:
We recommend that all systems with this package installed be upgraded. Please note that if you do not need the functionality provided by this package, you may want to remove it from your system.

Location:
All TSL updates are available from
<URI:http://www.trustix.net/pub/Trustix/updates/>
<URI:ftp://ftp.trustix.net/pub/Trustix/updates/>

About Trustix Secure Linux:
Trustix Secure Linux is a small Linux distribution for servers. With focus on security and stability, the system is painlessly kept safe and up to date from day one using swup, the automated software updater.

Automatic updates:
Users of the SWUP tool can enjoy having updates automatically installed using 'swup --upgrade'.

Public testing:
These packages have been available for public testing for some time. If you want to contribute by testing the various packages in the testing tree, please feel free to share your findings on the tsl-discuss mailinglist.
The testing tree is located at
<URI:http://www.trustix.net/pub/Trustix/testing/>
<URI:ftp://ftp.trustix.net/pub/Trustix/testing/>

You may also use swup for public testing of updates for TSL 2.0 and later:

  site {
      class = 0
      location = "http://snow.trustix.org/cloud/rdfs/latest.rdf"
      regexp = ".*"
  }

Questions?
Check out our mailing lists:
<URI:http://www.trustix.net/support/>

Verification:
This advisory along with all TSL packages are signed with the TSL sign key. This key is available from:
<URI:http://www.trustix.net/TSL-GPG-KEY>

The advisory itself is available from the errata pages at <URI:http://www.trustix.net/errata/trustix-1.2/>,
<URI:http://www.trustix.net/errata/trustix-1.5/> and
<URI:http://www.trustix.net/errata/trustix-2.0/>
or directly at
<URI:http://www.trustix.net/errata/misc/2003/TSL-2003-0037-proftpd.asc.txt>

MD5sums of the packages:


429165d5e6335e8ee002184ae91d3fa9 ./1.2/RPMS/proftpd-1.2.8-10tr.i586.rpm
ffc555898ba64d98ccdbc63965ebb5b8 ./1.2/SRPMS/proftpd-1.2.8-10tr.src.rpm
0f8bb15841f731d1e8871d2c12736680 ./1.5/RPMS/proftpd-1.2.8-10tr.i586.rpm
ffc555898ba64d98ccdbc63965ebb5b8 ./1.5/SRPMS/proftpd-1.2.8-10tr.src.rpm
6656d385bc41273678a4b426fb4ba2db ./2.0/RPMS/proftpd-1.2.8-9tr.i586.rpm
842153ad2b1a982568af28c5be0ff2be ./2.0/SRPMS/proftpd-1.2.8-9tr.src.rpm

Trustix Security Team