Updating Bash - PIAF

Before I upgrade CentOS with the patch (very easy thing to do) I am simply double checking if this affects the Phone Server (Asterisk) in anyway or is it really simple as updating Bash with a “yum update bash” and rebooting?

Here is the version of the components I am using:
CentOS 5.2 (Final)
PBX in a Flash 1.2.9

I say YOLO…

Shouldn’t hurt anything…

yum update bash is perfectly safe. Here are the general rules on CentOS updates with PIAF:

A kernel update will break Dahdi; however, PIAF’s update-source script is designed not to update the kernel to avoid this problem.

A PHP update will break Asterisk. These updates do not arrive very often. When they do…

chown -R asterisk:asterisk /var/lib/php/session will fix the problem.

Thanks for both the answers.