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SciLinux: Important krb5 Security Update SL6.x - Denial of Service Risks

Calendar Mar 03, 2011 • User Avatar LinuxSecurity Advisories
2 - 3 min read
Scientific Large Esm H446
Topics%20covered

Topics Covered

security advisory denial of service important krb5 SL6
Important: krb5 security update 
Date: Thu, 3 Mar 2011 15:34:16 -0600
Reply-To: Troy Dawson 
Sender: Security Errata for Scientific Linux
 
From: Troy Dawson 
Subject: Security ERRATA Important: krb5 on SL6.x i386/x86_64
Comments: To: "This email address is being protected from spambots. You need JavaScript enabled to view it."
 

Synopsis:	Important: krb5 security update
Issue date:	2011-02-08
CVE Names:	CVE-2010-4022 CVE-2011-0281 CVE-2011-0282

A NULL pointer dereference flaw was found in the way the MIT Kerberos
KDC processed principal names that were not null terminated, when the
KDC was configured to use an LDAP back end. A remote attacker could use
this flaw to crash the KDC via a specially-crafted request. (CVE-2011-0282)

A denial of service flaw was found in the way the MIT Kerberos KDC
processed certain principal names when the KDC was configured to use an
LDAP back end. A remote attacker could use this flaw to cause the KDC to
hang via a specially-crafted request. (CVE-2011-0281)

A denial of service flaw was found in the way the MIT Kerberos V5 slave
KDC update server (kpropd) processed certain update requests for KDC
database propagation. A remote attacker could use this flaw to terminate
the kpropd daemon via a specially-crafted update request. (CVE-2010-4022)

After installing the updated packages, the krb5kdc daemon will be
restarted automatically.

SL 6.x

 SRPMS:
krb5-1.8.2-3.el6_0.4.src.rpm
 i386:
krb5-devel-1.8.2-3.el6_0.4.i686.rpm
krb5-libs-1.8.2-3.el6_0.4.i686.rpm
krb5-pkinit-openssl-1.8.2-3.el6_0.4.i686.rpm
krb5-server-1.8.2-3.el6_0.4.i686.rpm
krb5-server-ldap-1.8.2-3.el6_0.4.i686.rpm
krb5-workstation-1.8.2-3.el6_0.4.i686.rpm
 x86_64:
krb5-devel-1.8.2-3.el6_0.4.i686.rpm
krb5-devel-1.8.2-3.el6_0.4.x86_64.rpm
krb5-libs-1.8.2-3.el6_0.4.i686.rpm
krb5-libs-1.8.2-3.el6_0.4.x86_64.rpm
krb5-pkinit-openssl-1.8.2-3.el6_0.4.x86_64.rpm
krb5-server-1.8.2-3.el6_0.4.x86_64.rpm
krb5-server-ldap-1.8.2-3.el6_0.4.i686.rpm
krb5-server-ldap-1.8.2-3.el6_0.4.x86_64.rpm
krb5-workstation-1.8.2-3.el6_0.4.x86_64.rpm

-Connie Sieh
-Troy Dawson