Issued:

2012-09-19

Updated:

2012-09-19

RHBA-2012:1294 - krb5 bug fix update

Synopsis

krb5 bug fix update

Type/Severity

Bug Fix Advisory

Topic

Updated krb5 packages are now available for Red Hat Enterprise Linux 6.

Description

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).

This update fixes the following bug:

• Due to a previous update to a locally-applied patch, files created by the libkrb5 library were given correct SELinux labels. However, each flushing of the replay cache caused the file context configuration to be reloaded, to ensure that the correct label is applied to the newly-created replacement replay cache file. This resulted in large performance degradation in applications which accept authentication and use replay caches. With this update, the context configuration is only loaded when the context configuration file has been modified and the configuration is now freed only when the library is unloaded or the calling application exits, thus greatly lowering the impact of this problem. (BZ#852455)

Users of krb5 are advised to upgrade to these updated packages, which fix this bug.

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/knowledge/articles/11258

Affected Products

Updated Packages

• krb5-1.9-33.el6_3.3.src.rpm
• krb5-libs-1.9-33.el6_3.3.ppc64.rpm
• krb5-debuginfo-1.9-33.el6_3.3.s390.rpm
• krb5-workstation-1.9-33.el6_3.3.i686.rpm
• krb5-libs-1.9-33.el6_3.3.x86_64.rpm
• krb5-libs-1.9-33.el6_3.3.i686.rpm
• krb5-libs-1.9-33.el6_3.3.ppc.rpm
• krb5-server-ldap-1.9-33.el6_3.3.i686.rpm
• krb5-devel-1.9-33.el6_3.3.s390.rpm
• krb5-pkinit-openssl-1.9-33.el6_3.3.x86_64.rpm
• krb5-server-1.9-33.el6_3.3.i686.rpm
• krb5-debuginfo-1.9-33.el6_3.3.s390x.rpm
• krb5-devel-1.9-33.el6_3.3.i686.rpm
• krb5-debuginfo-1.9-33.el6_3.3.x86_64.rpm
• krb5-debuginfo-1.9-33.el6_3.3.ppc64.rpm
• krb5-server-ldap-1.9-33.el6_3.3.x86_64.rpm
• krb5-server-ldap-1.9-33.el6_3.3.ppc.rpm
• krb5-workstation-1.9-33.el6_3.3.ppc64.rpm
• krb5-server-ldap-1.9-33.el6_3.3.ppc64.rpm
• krb5-debuginfo-1.9-33.el6_3.3.ppc.rpm
• krb5-server-ldap-1.9-33.el6_3.3.s390.rpm
• krb5-libs-1.9-33.el6_3.3.s390x.rpm
• krb5-debuginfo-1.9-33.el6_3.3.i686.rpm
• krb5-server-ldap-1.9-33.el6_3.3.s390x.rpm
• krb5-libs-1.9-33.el6_3.3.s390.rpm
• krb5-server-1.9-33.el6_3.3.s390x.rpm
• krb5-devel-1.9-33.el6_3.3.ppc64.rpm
• krb5-devel-1.9-33.el6_3.3.x86_64.rpm
• krb5-devel-1.9-33.el6_3.3.ppc.rpm
• krb5-pkinit-openssl-1.9-33.el6_3.3.s390x.rpm
• krb5-server-1.9-33.el6_3.3.x86_64.rpm
• krb5-workstation-1.9-33.el6_3.3.x86_64.rpm
• krb5-pkinit-openssl-1.9-33.el6_3.3.i686.rpm
• krb5-devel-1.9-33.el6_3.3.s390x.rpm
• krb5-pkinit-openssl-1.9-33.el6_3.3.ppc64.rpm
• krb5-workstation-1.9-33.el6_3.3.s390x.rpm
• krb5-server-1.9-33.el6_3.3.ppc64.rpm

Fixes

• This content is not included.BZ - 852455

CVEs

(none)

References

(none)

Additional information

• The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
• Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.