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1328f984d0
Because the attrs & values in DN's, RDN's and AVA's are comparison case-
insensitive the hash value between two objects which compare as equal but
differ in case must also yield the same hash value. This is critical when
these objects are used as a dict key or in a set because dicts and sets
use the object's __hash__ value in conjunction with the objects __eq__
method to lookup the object.
The defect is the DN, RDN & AVA objects computed their hash from the case-
preserving string representation thus two otherwise equal objects
incorrectly yielded different hash values.
The problem manifests itself when one of these objects is used as a key in
a dict, for example a dn.
dn1 = DN(('cn', 'Bob'))
dn2 = DN(('cn', 'bob'))
dn1 == dn2 --> True
hash(dn1) == hash(dn2) --> False
d = {}
d[dn1] = x
d[dn2] = y
len(d) --> 2
The patch fixes the above by lower casing the string representation of
the object prior to computing it's hash.
The patch also corrects a spelling mistake and a bogus return value in
ldapupdate.py which happened to be discovered while researching this
bug.
IPA Server
What is it?
-----------
For efficiency, compliance and risk mitigation, organizations need to
centrally manage and correlate vital security information including:
* Identity (machine, user, virtual machines, groups, authentication
credentials)
* Policy (configuration settings, access control information)
* Audit (events, logs, analysis thereof)
Since these are not new problems. there exist many approaches and
products focused on addressing them. However, these tend to have the
following weaknesses:
* Focus on solving identity management across the enterprise has meant
less focus on policy and audit.
* Vendor focus on Web identity management problems has meant less well
developed solutions for central management of the Linux and Unix
world's vital security info. Organizations are forced to maintain
a hodgepodge of internal and proprietary solutions at high TCO.
* Proprietary security products don't easily provide access to the
vital security information they collect or manage. This makes it
difficult to synchronize and analyze effectively.
The Latest Version
------------------
Details of the latest version can be found on the IPA server project
page under <http://www.freeipa.org/>.
Documentation
-------------
The most up-to-date documentation can be found at
<http://freeipa.org/page/Documentation/>.
Quick Start
-----------
To get started quickly, start here:
<https://fedorahosted.org/freeipa/wiki/QuickStartGuide>
Licensing
---------
Please see the file called COPYING.
Contacts
--------
* If you want to be informed about new code releases, bug fixes,
security fixes, general news and information about the IPA server
subscribe to the freeipa-announce mailing list at
<https://www.redhat.com/mailman/listinfo/freeipa-interest/>.
* If you have a bug report please submit it at:
<https://bugzilla.redhat.com>
* If you want to participate in actively developing IPA please
subscribe to the freeipa-devel mailing list at
<https://www.redhat.com/mailman/listinfo/freeipa-devel/> or join
us in IRC at irc://irc.freenode.net/freeipa