Error:  Multilib version PRoblems found. This often means that the root       cause is something else and multilib version checking is just       pointing out that there is a problem. Eg.:

         1. You have an upgrade for openssl which is missing some            dependency that another package requires. Yum is trying to            solve this by installing an older version of openssl of the            different architecture. If you exclude the bad architecture            yum will tell you what the root cause is (which package            requires what). You can try redoing the upgrade with            --exclude openssl.otherarch ... this should give you an error            message showing the root cause of the problem.

         2. You have multiple architectures of openssl installed, but            yum can only see an upgrade for one of those arcitectures.            If you don't want/need both architectures anymore then you            can remove the one with the missing update and everything            will work.

         3. You have duplicate versions of openssl installed already.            You can use "yum check" to get yum show these errors.

       ...you can also use --setopt=protected_multilib=false to remove       this checking, however this is almost never the correct thing to       do as something else is very likely to go wrong (often causing       much more problems).

       Protected multilib versions: openssl-1.0.1e-15.el6.i686 != openssl-1.0.1                                                                                         -48.el6_8.1.x86_64 You could try using --skip-broken to work around the problem You could try running: rpm -Va --nofiles --nodigest

解決辦法：

yum downgrade opensslyum install openssl-devel

本文來源：http://superuser.com/questions/345876/yum-install-error-protected-multilib-versions-error