Scientific Linux Security Update : krb5 on SL6.x i386/x86_64

Medium Nessus Plugin ID 61190


The remote Scientific Linux host is missing one or more security updates.


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-2011-1530)

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: 61190

File Name: sl_20111206_krb5_on_SL6_x.nasl

Version: $Revision: 1.5 $

Type: local

Agent: unix

Published: 2012/08/01

Modified: 2014/08/16

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 6.8

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

Vulnerability Information

CPE: x-cpe:/o:fermilab:scientific_linux

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

Patch Publication Date: 2011/12/06

Reference Information

CVE: CVE-2011-1530