RHEL 2.1 : krb5 (RHSA-2002:173)

critical Nessus Plugin ID 12320


The remote Red Hat host is missing one or more security updates.


Updated Kerberos 5 packages are now available for Red Hat LInux Advanced Server. These updates fix a buffer overflow in the XDR decoder.

Sun RPC is a remote procedure call framework which allows clients to invoke procedures in a server process over a network. XDR is a mechanism for encoding data structures for use with RPC.

The Kerberos 5 network authentication system contains an RPC library which includes an XDR decoder derived from Sun's RPC implementation.
The Sun implementation was recently demonstrated to be vulnerable to a heap overflow. It is believed that the attacker needs to be able to authenticate to the kadmin daemon for this attack to be successful. No exploits are known to currently exist.

All users should upgrade to these errata packages which contain an updated version of Kerberos 5 which is not vulnerable to this issue.


Update the affected packages.

See Also




Plugin Details

Severity: Critical

ID: 12320

File Name: redhat-RHSA-2002-173.nasl

Version: 1.27

Type: local

Agent: unix

Published: 7/6/2004

Updated: 1/14/2021

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information


Risk Factor: High

Score: 7.4


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:redhat:enterprise_linux:krb5-devel, p-cpe:/a:redhat:enterprise_linux:krb5-libs, p-cpe:/a:redhat:enterprise_linux:krb5-server, p-cpe:/a:redhat:enterprise_linux:krb5-workstation, cpe:/o:redhat:enterprise_linux:2.1

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/15/2002

Vulnerability Publication Date: 8/12/2002

Exploitable With


Reference Information

CVE: CVE-2002-0391

RHSA: 2002:173