Issued:
2010-03-11
Updated:
2010-03-11

RHBA-2010:0135 - pam bug fix update

Synopsis

pam bug fix update

Type/Severity

Bug Fix Advisory

Topic

Updated pam packages that fix a bug in the pam_time and pam_group modules are now available.

Description

Pluggable Authentication Modules (PAM) provide a system whereby administrators can set up authentication policies, without having to recompile programs to handle authentication.

These updated packages fix the following bug:

  • the pam_time and pam_group modules, which support allowing or rejecting authentication based on time and assigning group names respectively, incorrectly matched user, service, or terminal name substrings even if no wildcard was specified in the configuration. For example, "user" and "user1" were incorrectly equated, causing policies to apply to both usernames even when "user" was the only username subject to said policies. This update improves the string matching in the pam_time and pam_group modules ensuring such mis-matches (and consequent policy mis-applications) no longer occur. (BZ#571341)

All pam users are advised to upgrade to these updated packages, which resolve this issue.

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 This content is not included.http://kbase.redhat.com/faq/docs/DOC-11259

Affected Products

ProductVersionArch
Red Hat Enterprise Linux for x86_64 - Extended Update Support5.4x86_64
Red Hat Enterprise Linux for x86_64 - Extended Update Support5.4ia64
Red Hat Enterprise Linux for x86_64 - Extended Update Support5.4i386
Red Hat Enterprise Linux for Power, big endian5ppc
Red Hat Enterprise Linux for Power, big endian - Extended Update Support5.4ppc
Red Hat Enterprise Linux for IBM z Systems5s390x
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support5.4s390x
Red Hat Enterprise Linux Workstation5x86_64
Red Hat Enterprise Linux Workstation5i386
Red Hat Enterprise Linux Server5x86_64
Red Hat Enterprise Linux Server5ia64
Red Hat Enterprise Linux Server5i386
Red Hat Enterprise Linux Server from RHUI5x86_64
Red Hat Enterprise Linux Server from RHUI5i386
Red Hat Enterprise Linux Desktop5x86_64
Red Hat Enterprise Linux Desktop5i386

Updated Packages

  • pam-devel-0.99.6.2-6.el5_4.1.ppc64.rpm
  • pam-0.99.6.2-6.el5_4.1.ppc64.rpm
  • pam-devel-0.99.6.2-6.el5_4.1.s390x.rpm
  • pam-devel-0.99.6.2-6.el5_4.1.ppc.rpm
  • pam-0.99.6.2-6.el5_4.1.s390x.rpm
  • pam-devel-0.99.6.2-6.el5_4.1.i386.rpm
  • pam-devel-0.99.6.2-6.el5_4.1.ia64.rpm
  • pam-devel-0.99.6.2-6.el5_4.1.s390.rpm
  • pam-0.99.6.2-6.el5_4.1.ia64.rpm
  • pam-devel-0.99.6.2-6.el5_4.1.x86_64.rpm
  • pam-0.99.6.2-6.el5_4.1.i386.rpm
  • pam-0.99.6.2-6.el5_4.1.src.rpm
  • pam-0.99.6.2-6.el5_4.1.s390.rpm
  • pam-0.99.6.2-6.el5_4.1.x86_64.rpm
  • pam-0.99.6.2-6.el5_4.1.ppc.rpm

Fixes

CVEs

(none)

References

(none)

Additional information