Comment 7 for bug 1172916

The latest 5.1 and 5.6 tarballs are also affected. It's also not RHEL-specific, but based on a XB Jenkins param build, affects all supported platforms. Verified on Ubuntu 13.04:

$ Percona-Server-5.1.69-rel14.7-572.Linux.x86_64/libexec/mysqld
Percona-Server-5.1.69-rel14.7-572.Linux.x86_64/libexec/mysqld: error while loading shared libraries: libssl.so.6: cannot open shared object file: No such file or directory

$ Percona-Server-5.5.31-rel30.3-520.Linux.x86_64/bin/mysqld
Percona-Server-5.5.31-rel30.3-520.Linux.x86_64/bin/mysqld: error while loading shared libraries: libssl.so.6: cannot open shared object file: No such file or directory

$ Percona-Server-5.6.11-rc60.3-375.Linux.x86_64/bin/mysqld
Percona-Server-5.6.11-rc60.3-375.Linux.x86_64/bin/mysqld: error while loading shared libraries: libssl.so.6: cannot open shared object file: No such file or directory

$ dpkg -l | grep ssl
ii libio-socket-ssl-perl 1.76-2ubuntu1 all Perl module implementing object oriented interface to SSL sockets
ii libnet-ssleay-perl 1.48-1 amd64 Perl module for Secure Sockets Layer (SSL)
ii libssl-dev 1.0.1c-4ubuntu8 amd64 SSL development libraries, header files and documentation
ii libssl-doc 1.0.1c-4ubuntu8 all SSL development documentation documentation
ii libssl0.9.8:amd64 0.9.8o-7ubuntu3.1 amd64 SSL shared libraries
ii libssl1.0.0:amd64 1.0.1c-4ubuntu8 amd64 SSL shared libraries
ii openssl 1.0.1c-4ubuntu8 amd64 Secure Socket Layer (SSL) binary and related cryptographic tools
ii python-openssl 0.13-2ubuntu3 amd64 Python 2 wrapper around the OpenSSL library