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This bug is created as a clone of upstream ticket:
https://fedorahosted.org/sssd/ticket/1239

Sudo client sends two synchronous requests to sssd:
1. for default options providing none information (sss_sudo_send_recv_defaults())
2. for user rules providing username (sss_sudo_send_recv())

This can end up in mixing sudoers from two domains:
1. we have domains A, B (both sudo enabled) and user X@B
2. X@B does sudo
3. sudo requests default options - we will return cn=defaults from A
4. sudo requests rule for X - we will return rules from B

We should send username and uid in sss_sudo_send_recv_defaults(). Then find the domain the user is a member of and return this domain name to sudo.

Sudo will then request the rules giving us username, uid and domain.

This request was not resolved in time for the current release.
Red Hat invites you to ask your support representative to
propose this request, if still desired, for consideration in
the next release of Red Hat Enterprise Linux.

This request was erroneously removed from consideration in Red Hat Enterprise Linux 6.4, which is currently under development.  This request will be evaluated for inclusion in Red Hat Enterprise Linux 6.4.

Verified manually as fixed with the following packages:

libsss_idmap-1.9.2-59.el6.x86_64
sssd-client-1.9.2-59.el6.x86_64
sudo-1.8.6p3-6.el6.x86_64
sssd-1.9.2-59.el6.x86_64
libsss_sudo-1.9.2-59.el6.x86_64

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHSA-2013-0508.html