Is version 11.5.3.0.0.163 Vulnerable to these attacks Beast/Poddle

According to SOL13400, version 11.5.3 is vulnerable to BEAST but you can mitigate the issue by using only TLS1.1, TLS1.2, or RC4-SHA ciphers.

According to SOL15702, 11.5.3 is not vulnerable to POODLE. You can also provide additional mitigation by preventing use of SSLv3 ciphers.