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Red Hat Enterprise Linux 5: 2014:1255-01 Moderate: krb5 Buffer Overflow

red hat
Calendar Grey September 17, 2014
Dist Redhat Esm H88
This notice brings attention to a significant security enhancement for krb5 impacting Red Hat platforms, targeting a memory corruption vulnerability.
Updated krb5 packages that fix one security issue are now available for Red Hat Enterprise Linux 5

Solution

Before applying this update, make sure all previously released errata relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/articles/11258

Summary

Kerberos is an authentication system which allows clients and services to authenticate to each other with the help of a trusted third party, a Kerberos Key Distribution Center (KDC).
A buffer overflow was found in the KADM5 administration server (kadmind) when it was used with an LDAP back end for the KDC database. A remote, authenticated attacker could potentially use this flaw to execute arbitrary code on the system running kadmind. (CVE-2014-4345)
All krb5 users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. After installing the updated packages, the krb5kdc and kadmind daemons will be restarted automatically.

Topics%20covered

Topics Covered

security advisory moderate update buffer overflow Red Hat Enterprise krb5

References

https://access.redhat.com/security/cve/CVE-2014-4345 https://access.redhat.com/security/updates/classification#moderate

Package List

Red Hat Enterprise Linux Desktop (v. 5 client):
Source: krb5-1.6.1-80.el5_11.src.rpm
i386: krb5-debuginfo-1.6.1-80.el5_11.i386.rpm krb5-libs-1.6.1-80.el5_11.i386.rpm krb5-workstation-1.6.1-80.el5_11.i386.rpm
x86_64: krb5-debuginfo-1.6.1-80.el5_11.i386.rpm krb5-debuginfo-1.6.1-80.el5_11.x86_64.rpm krb5-libs-1.6.1-80.el5_11.i386.rpm krb5-libs-1.6.1-80.el5_11.x86_64.rpm krb5-workstation-1.6.1-80.el5_11.x86_64.rpm
RHEL Desktop Workstation (v. 5 client):
Source: krb5-1.6.1-80.el5_11.src.rpm
i386: krb5-debuginfo-1.6.1-80.el5_11.i386.rpm krb5-devel-1.6.1-80.el5_11.i386.rpm krb5-server-1.6.1-80.el5_11.i386.rpm krb5-server-ldap-1.6.1-80.el5_11.i386.rpm
x86_64: krb5-debuginfo-1.6.1-80.el5_11.i386.rpm krb5-debuginfo-1.6.1-80.el5_11.x86_64.rpm krb5-devel-1.6.1-80.el5_11.i386.rpm krb5-devel-1.6.1-80.el5_11.x86_64.rpm krb5-server-1.6.1-80.el5_11.x86_64.rpm krb5-server-ldap-1.6.1-80.el5_11.x86_64.rpm
Red Hat Enterprise Linux (v. 5 server):
Source: krb5-1.6.1-80.el5_11.src.rpm
i386: krb5-debuginfo-1.6.1-80.el5_11.i386.rpm krb5-devel-1.6.1-80.el5_11.i386.rpm krb5-libs-1.6.1-80.el5_11.i386.rpm krb5-server-1.6.1-80.el5_11.i386.rpm krb5-server-ldap-1.6.1-80.el5_11.i386.rpm krb5-workstation-1.6.1-80.el5_11.i386.rpm
ia64: krb5-debuginfo-1.6.1-80.el5_11.i386.rpm

Read the Full Advisory


Advisory ID: RHSA-2014:1255-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2014:1255.html
Issue date: 2014-09-17

Topic

Updated krb5 packages that fix one security issue are now available for RedHat Enterprise Linux 5.Red Hat Product Security has rated this update as having Moderate securityimpact. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available from the CVE link in theReferences section.

Topics%20covered

Topics Covered

security advisory moderate update buffer overflow Red Hat Enterprise krb5

Relevant Releases Architectures

RHEL Desktop Workstation (v. 5 client) - i386, x86_64

Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64

Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64

Bugs Fixed

1128157 - CVE-2014-4345 krb5: buffer overrun in kadmind with LDAP backend (MITKRB5-SA-2014-001)

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