[Triumf-linux-managers] [ Technical Alert ] Bash code-injection vulnerability

Kelvin Raywood kray at triumf.ca
Wed Sep 24 13:40:36 PDT 2014


A vulnerability has been detected in bash and affects ScientificLinux 4, 
5 and 6, as well as CentOS 4, 5, 6 and 7.  It could allow arbitrary code 
execution by an attacker.  If your machine runs any internet facing 
service that uses the shell in anyway (e.g. cgi-scripts in a 
web-browser) or your machine is multi-user, then you should update your 
version of bash immediately.  If you are unsure then update.

The TRIUMF mirror of ScientificLinux and CentOS has the fixed versions 
of bash for SL and Centos 5, 6 and 7.  You can update immediately with

     yum clean metadata
     yum update bash

If you are still running SL-4 or lower, then you should reinstall with a 
new version.

More info, including a table of version numbers of the fixed packages
is available at:

     https://access.redhat.com/articles/1200223

--
Kel Raywood, Core Computing and Networking


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