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From Greg Rumple <grum...@hway.net>
Subject mod_rewrite/3532: When a user hits a site that the rewrite rule get's executed, apache goes into a infinite loop consuming ram.
Date Tue, 15 Dec 1998 03:34:12 GMT

>Number:         3532
>Category:       mod_rewrite
>Synopsis:       When a user hits a site that the rewrite rule get's executed, apache goes
into a infinite loop consuming ram.
>Confidential:   no
>Severity:       critical
>Priority:       medium
>Responsible:    apache
>State:          open
>Class:          sw-bug
>Submitter-Id:   apache
>Arrival-Date:   Mon Dec 14 19:40:01 PST 1998
>Last-Modified:
>Originator:     grumple@hway.net
>Organization:
apache
>Release:        1.3.3
>Environment:
IRIX 6.2, 6.4, 6.5.1, and Linux 2.0.36
>Description:
The following rewrite rule causes apache to run at 100% cpu and consume tons of ram until
I kill it.  It creates basically an infinite rewrite rule.  This behaved properly in 1.2.6,
and now I have had to modify the rewrite rule.

RewriteEngine on
RewriteCond %{HTTP_HOST} !^www.rumple.net
RewriteRule ^(.*) http://www.rumple.net/$1

If I modify the rewrite rule as follows it works fine.

RewriteEngine on
RewriteCond %{HTTP_HOST} !^www.rumple.net
RewriteRule ^(.*) http://www.rumple.net/$1 [L,R]

The downside to this is it actually causes a redirect in my browser, where as before it was
just an internal rewrite.  The real catch is I have lots of users who have this exact rewrite
rule in their .htaccess files, and one by one I am having to hand patch these.
>How-To-Repeat:

>Fix:
Nope..
>Audit-Trail:
>Unformatted:
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