RHEL 6 : krb5 (RHSA-2013:0748)

Medium Nessus Plugin ID 65992


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


Updated krb5 packages that fix one security issue are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

Kerberos is a network authentication system which allows clients and servers to authenticate to each other using symmetric encryption and a trusted third-party, the Key Distribution Center (KDC).

A NULL pointer dereference flaw was found in the way the MIT Kerberos KDC processed certain TGS (Ticket-granting Server) requests. A remote, authenticated attacker could use this flaw to crash the KDC via a specially crafted TGS request. (CVE-2013-1416)

All krb5 users should upgrade to these updated packages, which contain a backported patch to correct this issue. After installing the updated packages, the krb5kdc daemon will be restarted automatically.


Update the affected packages.

See Also



Plugin Details

Severity: Medium

ID: 65992

File Name: redhat-RHSA-2013-0748.nasl

Version: $Revision: 1.11 $

Type: local

Agent: unix

Published: 2013/04/17

Modified: 2017/01/05

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 4

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:krb5-debuginfo, p-cpe:/a:redhat:enterprise_linux:krb5-devel, p-cpe:/a:redhat:enterprise_linux:krb5-libs, p-cpe:/a:redhat:enterprise_linux:krb5-pkinit-openssl, p-cpe:/a:redhat:enterprise_linux:krb5-server, p-cpe:/a:redhat:enterprise_linux:krb5-server-ldap, p-cpe:/a:redhat:enterprise_linux:krb5-workstation, cpe:/o:redhat:enterprise_linux:6, cpe:/o:redhat:enterprise_linux:6.4

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

Patch Publication Date: 2013/04/16

Reference Information

CVE: CVE-2013-1416

OSVDB: 92540

RHSA: 2013:0748