[Yum] Configure for security updates only?

[phil at pricom.com.au (Philip Rhoades)]

Hi people,

Is there a way to configure/automate yum to update security affected  
rpms only?

Thanks,

Phil.
-- 
Philip Rhoades

Pricom Pty Limited  (ACN 003 252 275  ABN 91 003 252 275)
GPO Box 3411
Sydney NSW	2001
Australia
Mobile:  +61:0411-185-652
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E-mail:  phil@xxxxxxxxxxxxx