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Gentoo Linux Security Advisory                           GLSA 200409-19
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                                            https://security.gentoo.org/
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  Severity: High
     Title: Heimdal: ftpd root escalation
      Date: September 16, 2004
      Bugs: #61412
        ID: 200409-19

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Synopsis
=======
Several bugs exist in the Heimdal ftp daemon which could allow a remote
attacker to gain root privileges.

Background
=========
Heimdal is an implementation of Kerberos 5.

Affected packages
================
    -------------------------------------------------------------------
     Package            /  Vulnerable  /                    Unaffected
    -------------------------------------------------------------------
  1  app-crypt/heimdal       < 0.6.3                          >= 0.6.3

Description
==========
Przemyslaw Frasunek discovered several flaws in lukemftpd, which also
apply to Heimdal ftpd's out-of-band signal handling code.

Additionally, a potential vulnerability that could lead to Denial of
Service by the Key Distribution Center (KDC) has been fixed in this
version.

Impact
=====
A remote attacker could be able to run arbitrary code with escalated
privileges, which can result in a total compromise of the server.

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

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

    # emerge sync

    # emerge -pv ">=app-crypt/heimdal-0.6.3"
    # emerge ">=app-crypt/heimdal-0.6.3"

References
=========
  [ 1 ] Heimdal advisory
          [ 2 ] Advisory by Przemyslaw Frasunek
          [ 3 ] CAN-2004-0794
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0794

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

  https://security.gentoo.org/glsa/200409-19

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
https://bugs.gentoo.org/.

License
======
Copyright 2004 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.

https://creativecommons.org/licenses/by-sa/1.0/