Description of problem:

When applying errata kernel security and buxfix RHSA-2015:1623, received following error message:

[u'ERROR with rpm_check_debug vs depsolve:', 'libz.so.1(ZLIB_1.2.2.3)(64bit) is needed by elfutils-libs-0.161-3.el6.x86_64', u'Please report this error 
at https://bugzilla.redhat.com/enter_bug.cgi?product=Red%20Hat%20Enterprise%20Linux%206&component=yum']

Version-Release number of selected component (if applicable):


How reproducible:

Anytime this errata is attempted to be applied.  Shows success, but doesn't install and gives the error noted.

Steps to Reproduce:
1. content hosts
2. select host
3. errata tab
4. select RHSA-2015:1623, install


Actual results:

errata is not applied and get the error message

Expected results:

Errata applied to the system successfully

Additional info: