Amazon Linux AMI Security Advisory: ALAS-2016-644
Advisory Release Date: 2016-02-09 13:30 Pacific
Advisory Updated Date: 2016-02-09 13:30 Pacific
It was found that python-rsa is vulnerable to Bleichenbacher'06 attack, allowing attacker to fake signatures for any public key with low exponent. (CVE-2016-1494)
Run yum update python-rsa to update your system.