I'm likewise seeing the same failure of rpcbind after upgrading it and 
libtirpc on my SL7 systems...

May 23 15:37:38 localhost yum[6929]: Updated: 
libtirpc-0.2.4-0.8.el7_3.x86_64
May 23 15:37:38 localhost yum[6929]: Updated: rpcbind-0.2.0-38.el7_3.x86_64
May 23 15:37:40 localhost systemd[1]: rpcbind.service: main process 
exited, code=killed, status=6/ABRT
May 23 15:37:40 localhost systemd[1]: Unit rpcbind.service entered 
failed state.
May 23 15:37:40 localhost systemd[1]: rpcbind.service failed.

Downgraded the packages to fix the problem.

Gilbert

On 22/05/2017 2:57 PM, Pat Riehecky wrote:
> Synopsis:          Important: rpcbind security update
> Advisory ID:       SLSA-2017:1262-1
> Issue Date:        2017-05-21
> CVE Numbers:       CVE-2017-8779
> --
> 
> Security Fix(es):
> 
> * It was found that due to the way rpcbind uses libtirpc (libntirpc), a
> memory leak can occur when parsing specially crafted XDR messages. An
> attacker sending thousands of messages to rpcbind could cause its memory
> usage to grow without bound, eventually causing it to be terminated by the
> OOM killer. (CVE-2017-8779)
> --
> 
> SL7
>    x86_64
>      rpcbind-0.2.0-38.el7_3.x86_64.rpm
>      rpcbind-debuginfo-0.2.0-38.el7_3.x86_64.rpm
> 
> - Scientific Linux Development Team

-- 
Gilbert E. Detillieux		E-mail:	<[log in to unmask]>
Dept. of Computer Science	Web:	http://www.cs.umanitoba.ca/~gedetil/
University of Manitoba		Phone:	(204)474-8161
Winnipeg MB CANADA  R3T 2N2	Fax:	(204)474-7609