--+nBD6E3TurpgldQp
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory                           GLSA 200702-05
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
http://security.gentoo.org/ 
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

  Severity: Normal
     Title: Fail2ban: Denial of Service
      Date: February 16, 2007
      Bugs: #157166
        ID: 200702-05

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Synopsis
=======
A flaw in Fail2ban may allow remote attackers to deny access to
arbitrary hosts.

Background
=========
Fail2ban monitors log files for failed authentication attempts and can
block hosts responsible for repeated attacks.

Affected packages
================
    -------------------------------------------------------------------
     Package                /  Vulnerable  /                Unaffected
    -------------------------------------------------------------------
  1  net-analyzer/fail2ban       < 0.6.2                      >= 0.6.2

Description
==========
A flaw in the method used to parse log entries allows remote,
unauthenticated attackers to forge authentication attempts from other
hosts.

Impact
=====
A remote attacker can add arbitrary hosts to the block list, denying
legitimate users access to a resource.

Workaround
=========
There is no known workaround at this time.

Resolution
=========
All Fail2ban users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-analyzer/fail2ban-0.6.2"

References
=========
  [ 1 ] CVE-2006-6302
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-6302 

Availability
===========
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-200702-05.xml 

Concerns?
========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at 
http://bugs.gentoo.org. 

License
======
Copyright 2007 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.5 

--+nBD6E3TurpgldQp
Content-Type: application/pgp-signature
Content-Disposition: inline

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.6 (GNU/Linux)

iQEVAwUBRdT9PzvRww8BFPxFAQKYBwf/cC5hPoDIlxnpo024wAqQvTXQtVTry3Zd
Ou7SbTVwPM76i1DPN5f69+RxTAxC2fHjePAFXMV8QBkaQ53z7hTpYml2VF6m2XfW
4RGEERASnj903zxbsAbbME6Czv14vXrHHnz6yaEbw9fhyD8Nx2Sx3SOydWzWwKUY
BtBbBiO7KPBCezf1IyTrrGhyi3F95n766vocyeCGREy/r8V4p4mPIVdvHCs/2weZ
O7W4Zx9GWx0AQZI7itGZ6pOS0LBzlgFRvIP6JaMKjQDCF7IHByF9BG2kVeeQP+sP
9vOW2S4f0Dk2FUY4y4vpaFRPKeBtWT7HeaLQ2X6wlHzMC4MjPKLQZQ==KKwV
-----END PGP SIGNATURE-----

--+nBD6E3TurpgldQp--