GLSA-200405-23 : Heimdal: Kerberos 4 buffer overflow in kadmin

This script is Copyright (C) 2004-2014 Tenable Network Security, Inc.


Synopsis :

The remote Gentoo host is missing one or more security-related
patches.

Description :

The remote host is affected by the vulnerability described in GLSA-200405-23
(Heimdal: Kerberos 4 buffer overflow in kadmin)

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

Impact :

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.

Workaround :

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.

See also :

http://www.pdc.kth.se/heimdal/advisory/2004-05-06/
http://www.gentoo.org/security/en/glsa/glsa-200405-23.xml

Solution :

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'

Risk factor :

Critical / CVSS Base Score : 10.0
(CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C)

Family: Gentoo Local Security Checks

Nessus Plugin ID: 14509 (gentoo_GLSA-200405-23.nasl)

Bugtraq ID:

CVE ID: CVE-2004-0434