lppasswd in CUPS 1.1.22 does not remove the passwd.new file if it encounters a file-size resource limit while writing to passwd.new, which causes subsequent invocations of lppasswd to fail.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9545
https://exchange.xforce.ibmcloud.com/vulnerabilities/18608
http://www.redhat.com/support/errata/RHSA-2005-053.html
http://www.redhat.com/support/errata/RHSA-2005-013.html
http://www.mandriva.com/security/advisories?name=MDKSA-2005:008