A security flaw was found in PAM pam_krb5 module, providing user authentication based on Kerberos principals. A remote attacker could use this flaw to recognize, if some username/login belongs to set of user accounts, existing on the system, and subsequently perform dictionary based password guess attack.
pam_krb5-2.3.5-1.fc11 has been submitted as an update for Fedora 11. http://admin.fedoraproject.org/updates/pam_krb5-2.3.5-1.fc11
pam_krb5-2.3.5-1.fc10 has been submitted as an update for Fedora 10. http://admin.fedoraproject.org/updates/pam_krb5-2.3.5-1.fc10
pam_krb5-2.3.5-1.fc9 has been submitted as an update for Fedora 9. http://admin.fedoraproject.org/updates/pam_krb5-2.3.5-1.fc9
pam_krb5-2.3.5-1.fc11 has been pushed to the Fedora 11 testing repository. If problems still persist, please make note of it in this bug report. If you want to test the update, you can install it with su -c 'yum --enablerepo=updates-testing update pam_krb5'. You can provide feedback for this update here: http://admin.fedoraproject.org/updates/F11/FEDORA-2009-5983
pam_krb5-2.3.5-1.fc10 has been pushed to the Fedora 10 testing repository. If problems still persist, please make note of it in this bug report. If you want to test the update, you can install it with su -c 'yum --enablerepo=updates-testing update pam_krb5'. You can provide feedback for this update here: http://admin.fedoraproject.org/updates/F10/FEDORA-2009-6255
pam_krb5-2.3.5-1.fc9 has been pushed to the Fedora 9 testing repository. If problems still persist, please make note of it in this bug report. If you want to test the update, you can install it with su -c 'yum --enablerepo=updates-testing-newkey update pam_krb5'. You can provide feedback for this update here: http://admin.fedoraproject.org/updates/F9/FEDORA-2009-6279
pam_krb5-2.3.5-1.fc10 has been pushed to the Fedora 10 stable repository. If problems still persist, please make note of it in this bug report.
pam_krb5-2.3.5-1.fc11 has been pushed to the Fedora 11 stable repository. If problems still persist, please make note of it in this bug report.
pam_krb5-2.3.5-1.fc9 has been pushed to the Fedora 9 stable repository. If problems still persist, please make note of it in this bug report.