RHEL 5 : pam_krb5 (RHSA-2008:0907)

Medium Nessus Plugin ID 34333


The remote Red Hat host is missing a security update.


An updated pam_krb5 package that fixes a security issue is now available for Red Hat Enterprise Linux 5.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

The pam_krb5 module allows Pluggable Authentication Modules (PAM) aware applications to use Kerberos to verify user identities by obtaining user credentials at log in time.

A flaw was found in the pam_krb5 'existing_ticket' configuration option. If a system is configured to use an existing credential cache via the 'existing_ticket' option, it may be possible for a local user to gain elevated privileges by using a different, local user's credential cache. (CVE-2008-3825)

Red Hat would like to thank Stephane Bertin for responsibly disclosing this issue.

Users of pam_krb5 should upgrade to this updated package, which contains a backported patch to resolve this issue.


Update the affected pam_krb5 package.

See Also



Plugin Details

Severity: Medium

ID: 34333

File Name: redhat-RHSA-2008-0907.nasl

Version: $Revision: 1.19 $

Type: local

Agent: unix

Published: 2008/10/03

Modified: 2017/01/03

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 4.4

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:pam_krb5, cpe:/o:redhat:enterprise_linux:5, cpe:/o:redhat:enterprise_linux:5.2

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

Patch Publication Date: 2008/10/02

Reference Information

CVE: CVE-2008-3825

OSVDB: 48784

RHSA: 2008:0907

CWE: 264