A flaw was found in the way libtirpc decoded RPC requests. A specially-crafted RPC request could cause libtirpc to attempt to free a buffer provided by an application using the library, even when the buffer was not dynamically allocated. This could cause an application using libtirpc, such as rpcbind, to crash. (CVE-2013-1950 __)
Run yum update libtirpc to update your system.
i686: libtirpc-devel-0.2.1-6.8.amzn1.i686 libtirpc-0.2.1-6.8.amzn1.i686 libtirpc-debuginfo-0.2.1-6.8.amzn1.i686 src: libtirpc-0.2.1-6.8.amzn1.src x86_64: libtirpc-debuginfo-0.2.1-6.8.amzn1.x86_64 libtirpc-devel-0.2.1-6.8.amzn1.x86_64 libtirpc-0.2.1-6.8.amzn1.x86_64