Issued:
2011-05-19
Updated:
2011-05-19

RHBA-2011:0711 - pam_krb5 bug fix update

Synopsis

pam_krb5 bug fix update

Type/Severity

Bug Fix Advisory (none)

Topic

An updated pam_krb5 package that fixes two bugs is now available for Red Hat Enterprise Linux 6.

Description

The pam_krb5 module allows PAM-aware applications to verify and change user passwords with the help of a KDC.

This update fixes the following bugs:

  • Previously, pam_krb5 ignored the "verify_ap_req_nofail" configuration setting when it checked whether the credentials from the Key Distribution Center (KDC) were spoofed because of a missing or otherwise inaccessible local keytab file. Due to this behavior, pam_krb5 wrongly returned a success message. This update reworks the credential verification. Now, the verification settings work as expected. (BZ#622938)

  • Previously, pam_krb5 used a format for password change requests that earlier versions of kadmind could not process. This update uses application programming interfaces (API) that format password change requests which can also be parsed by earlier versions of kadmind. (BZ#690583)

All pam_krb5 users are advised to upgrade to this updated package, which fixes 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 This content is not included.https://access.redhat.com/kb/docs/DOC-11259/

Affected Products

ProductVersionArch
Red Hat Enterprise Linux for Power, big endian6ppc64
Red Hat Enterprise Linux for IBM z Systems6s390x
Red Hat Enterprise Linux Workstation6x86_64
Red Hat Enterprise Linux Workstation6i386
Red Hat Enterprise Linux Server6x86_64
Red Hat Enterprise Linux Server6i386
Red Hat Enterprise Linux Server from RHUI6x86_64
Red Hat Enterprise Linux Server from RHUI6i386
Red Hat Enterprise Linux Server - Extended Life Cycle Support6x86_64
Red Hat Enterprise Linux Server - Extended Life Cycle Support6i386
Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension6x86_64
Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension6i386
Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension (for IBM z Systems)6s390x
Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems)6s390x
Red Hat Enterprise Linux Desktop6x86_64
Red Hat Enterprise Linux Desktop6i386

Updated Packages

  • pam_krb5-2.3.11-6.el6.i686.rpm
  • pam_krb5-debuginfo-2.3.11-6.el6.s390x.rpm
  • pam_krb5-2.3.11-6.el6.s390x.rpm
  • pam_krb5-debuginfo-2.3.11-6.el6.i686.rpm
  • pam_krb5-2.3.11-6.el6.ppc64.rpm
  • pam_krb5-2.3.11-6.el6.x86_64.rpm
  • pam_krb5-debuginfo-2.3.11-6.el6.ppc64.rpm
  • pam_krb5-2.3.11-6.el6.src.rpm
  • pam_krb5-debuginfo-2.3.11-6.el6.ppc.rpm
  • pam_krb5-2.3.11-6.el6.ppc.rpm
  • pam_krb5-debuginfo-2.3.11-6.el6.s390.rpm
  • pam_krb5-2.3.11-6.el6.s390.rpm
  • pam_krb5-debuginfo-2.3.11-6.el6.x86_64.rpm

Fixes

CVEs

(none)

References

(none)

Additional information