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Gentoo Linux Advisory: Heimdal

May 28, 2004, 00:13 (0 Talkback[s])

Gentoo Linux Security Advisory GLSA 200405-23

Severity: High
Title: Heimdal: Kerberos 4 buffer overflow in kadmin
Date: May 27, 2004
Bugs: #50208
ID: 200405-23


A possible buffer overflow in the Kerberos 4 component of Heimdal has been discovered.


Heimdal is a free implementation of Kerberos.

Affected packages

Package / Vulnerable / Unaffected
1 app-crypt/heimdal < 0.6.2 >= 0.6.2


A buffer overflow was discovered in kadmind, a server for administrative access to the Kerberos database.


By sending a specially formatted message to kadmind, a remote attacker may be able to crash kadmind causing a denial of service, or execute arbitrary code with the permissions of the kadmind process.


For a temporary workaround, providing you do not require Kerberos 4 support, you may turn off Kerberos 4 kadmin by running kadmind with the --no-kerberos4 option.


All Heimdal users should upgrade to the latest stable version:

    # emerge sync
    # emerge -pv ">=app-crypt/heimdal-0.6.2"
    # emerge ">=app-crypt/heimdal-0.6.2"


[ 1 ] Heimdal 0.6.2 Release Notice [ 2 ] CAN-2004-0434


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


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 or alternatively, you may file a bug at


Copyright 2004 Gentoo Technologies, Inc; referenced text belongs to its owner(s).

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