How to apply patches to apache?

Question

I am trying to apply patches to apache. The current version of apache is 2.2.22 and using ubuntu server 12.04 LTS. we have installed apache using apt-get command. I have downloaded patch from here. I am not sure where to put this file. I have put the patch file under /usr/lib/apache2/modules/ and used below command to apply patch.

patch -s < mod_proxy_ftp_CVE-2008-2939.diff

It again asked me to enter File to Patch :

The text leading up to this was:
--------------------------
|# SECURITY: CVE-2008-2939 (cve.mitre.org)
|# mod_proxy_ftp: Prevent XSS attacks when using wildcards in the path of
|# the FTP URL. Discovered by Marc Bevand of Rapid7.
|Index: modules/proxy/mod_proxy_ftp.c
|===================================================================
|--- modules/proxy/mod_proxy_ftp.c      (Revision 682869)
|+++ modules/proxy/mod_proxy_ftp.c      (Revision 682870)
--------------------------
File to patch:    

I entered same file name : mod_proxy_ftp_CVE-2008-2939.diff

It is giving me below error

1 out of 1 hunk FAILED -- saving rejects to file mod_proxy_ftp_CVE-2008-2939.diff.rej    

I am not sure what is wrong here ? Am I doing anything wrong ? I have tried google whole day.

Thank you in advance.

Answer 1

You are trying to aplly a patch for the modules/proxy/mod_proxy_ftp.c file which is a source file.

If you really want to do that, you need to download the source code of apache, apply the patch and recompile apache.