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

critical Nessus Plugin ID 14509

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.

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'

See Also

https://www.pdc.kth.se/heimdal/advisory/2004-05-06/

https://security.gentoo.org/glsa/200405-23

Plugin Details

Severity: Critical

ID: 14509

File Name: gentoo_GLSA-200405-23.nasl

Version: 1.17

Type: local

Published: 8/30/2004

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Critical

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:heimdal, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Patch Publication Date: 5/27/2004

Reference Information

CVE: CVE-2004-0434

GLSA: 200405-23