Scientific Linux SL6.x: CVE-2011-1527 Moderate: Kerberos DoS Risk

Date: Wed, 19 Oct 2011 09:06:57 -0500
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Sender: Security Errata for Scientific Linux
 
From: Pat Riehecky 
Subject: Security ERRATA Moderate: krb5 on SL6.x i386/x86_64
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Synopsis: Moderate: krb5 security update
Issue Date: 2011-10-18
CVE Numbers: CVE-2011-1527

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).

Multiple NULL pointer dereference and assertion failure flaws were found
in the MIT Kerberos KDC when it was configured to use an LDAP (Lightweight
Directory Access Protocol) or Berkeley Database (Berkeley DB) back end. A
remote attacker could use these flaws to crash the KDC. (CVE-2011-1527,
CVE-2011-1528, CVE-2011-1529)

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

SL6:
 i386
 krb5-debuginfo-1.9-9.el6_1.2.i686.rpm
 krb5-devel-1.9-9.el6_1.2.i686.rpm
 krb5-libs-1.9-9.el6_1.2.i686.rpm
 krb5-pkinit-openssl-1.9-9.el6_1.2.i686.rpm
 krb5-server-1.9-9.el6_1.2.i686.rpm
 krb5-server-ldap-1.9-9.el6_1.2.i686.rpm
 krb5-workstation-1.9-9.el6_1.2.i686.rpm
 x86_64
 krb5-debuginfo-1.9-9.el6_1.2.i686.rpm
 krb5-debuginfo-1.9-9.el6_1.2.x86_64.rpm
 krb5-devel-1.9-9.el6_1.2.i686.rpm
 krb5-devel-1.9-9.el6_1.2.x86_64.rpm
 krb5-libs-1.9-9.el6_1.2.i686.rpm
 krb5-libs-1.9-9.el6_1.2.x86_64.rpm
 krb5-pkinit-openssl-1.9-9.el6_1.2.x86_64.rpm
 krb5-server-1.9-9.el6_1.2.x86_64.rpm
 krb5-server-ldap-1.9-9.el6_1.2.i686.rpm
 krb5-server-ldap-1.9-9.el6_1.2.x86_64.rpm
 krb5-workstation-1.9-9.el6_1.2.x86_64.rpm

- Scientific Linux Development Team