RHBA-2011:1182 - Bug Fix Advisory

Topic

Updated selinux-policy packages that fix two bugs are now available for Red Hat
Enterprise Linux 5.

Description

The selinux-policy packages contain the rules that govern how confined processes
run on the system.

This update fixes the following bugs:

• When the sssd package was installed with a domain or LDAP service connected to

an OpenLDAP server over the TLS (Transport Layer Security) protocol, and the
nsswitch.conf and system-auth files were configured to use sssd, SELinux blocked
access and issued AVC (Access Vector Cache) messages. With this update, a
backport of the sssd SELinux policy from Red Hat Enterprise Linux 6 has been
provided, thus fixing this bug. (BZ#712133)

• Previously, SELinux prevented the krb5_child command from running because the

.k5login file had the wrong security context. With this update, the bug in the
appropriate SELinux policy has been fixed, and krb5_child now works as expected.
(BZ#720678)

All users of selinux-policy are advised to upgrade to these updated packages,
which fix these bugs.

Solution

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

This update is available via Red Hat Network. Details on how to use the Red
Hat Network to apply this update are available at
https://access.redhat.com/kb/docs/DOC-11259

Affected Products

• Red Hat Enterprise Linux for x86_64 - Extended Update Support 5.6 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 5.6 ia64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 5.6 i386
• Red Hat Enterprise Linux Server - AUS 5.6 x86_64
• Red Hat Enterprise Linux Server - AUS 5.6 ia64
• Red Hat Enterprise Linux Server - AUS 5.6 i386
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 5.6 s390x
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 5.6 ppc
• Red Hat Enterprise Linux Server - Extended Update Support from RHUI 5.6 x86_64
• Red Hat Enterprise Linux Server - Extended Update Support from RHUI 5.6 i386

Fixes

• BZ - 712133 - SELinux avc's for /var/lib/sss/pipes/nss
• BZ - 720678 - SELinux is preventing the krb5_child from using potentially mislabeled files (./.k5login).

CVEs

(none)

References

(none)