RHBA-2012:0134 - Bug Fix Advisory

Topic

Updated policycoreutils packages that fix three bugs are now available for Red
Hat Enterprise Linux 6.

Description

The policycoreutils packages contain the core utilities that are required for
the basic operation of a Security-Enhanced Linux (SELinux) system and its
policies.

This update fixes the following bugs:

• The semanage utility did not produce correct audit messages in the Common

Criteria certified environment. This update modifies semanage so that it now
sends correct audit events when the user is assigned to or removed from a new
role.

This update also modifies behavior of semanage concerning the user's SELinux
Multi-Level Security (MLS) and Multi-Category Security (MCS) range. The utility
now works with the user's default range of the MLS/MCS security level instead of
the lowest.

In addition, the semange(8) manual page has been corrected to reflect the
current semanage functionality. (BZ#785678)

• The missing exit(1) function call in the underlying code of the sepolgen-ifgen

utility could cause the restorecond daemon to access already freed memory when
retrieving user's information. This would cause restorecond to terminate
unexpectedly with a segmentation fault. With this update, restorecond has been
modified to check the return value of the getpwuid() function to avoid this
situation. (BZ#787579)

• When installing packages on the system in Federal Information Processing

Standard (FIPS) mode, parsing errors could occur and installation failed. This
was caused by the "/usr/lib64/python2.7/site-packages/sepolgen/yacc.py" parser,
which used MD5 checksums that are not supported in FIPS mode. This update
modifies the parser to use SHA-256 checksums and installation process is now
successful. (BZ#787605)

All users of policycoreutils are advised to upgrade to these updated packages,
which fix these bugs.

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/kb/docs/DOC-11259

Affected Products

• Red Hat Enterprise Linux Server 6 x86_64
• Red Hat Enterprise Linux Server 6 i386
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 6.2 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 6.2 i386
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 6.2 s390x
• Red Hat Enterprise Linux for Power, big endian 6 ppc64
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 6.2 ppc64
• Red Hat Enterprise Linux for Scientific Computing 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 i386
• Red Hat Enterprise Linux Server - AUS 6.2 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 i386
• Red Hat Enterprise Linux Workstation 6 x86_64
• Red Hat Enterprise Linux Workstation 6 i386
• Red Hat Enterprise Linux Desktop 6 x86_64
• Red Hat Enterprise Linux Desktop 6 i386
• Red Hat Enterprise Linux for IBM z Systems 6 s390x
• Red Hat Enterprise Linux Server - Extended Update Support from RHUI 6.2 x86_64
• Red Hat Enterprise Linux Server - Extended Update Support from RHUI 6.2 i386
• Red Hat Storage 2.0 x86_64
• Red Hat Gluster Storage Server for On-premise 2.0 x86_64
• Red Hat Storage for Public Cloud (via RHUI) 2.0 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 6 s390x
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension (for IBM z Systems) 6 s390x

Fixes

• BZ - 785678 - semanage is sending the wrong kind of audit events
• BZ - 787579 - unchecked return value of getpwuid() in policycoreutils-rhat.patch
• BZ - 787605 - selinux-policy update shows error parsing file obj_perm_sets.spt in FIPS mode

CVEs

(none)

References

(none)