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From William A Rowe Jr <>
Subject Re: Improper string concatenation in mod_alias allows code execution out of bounds defined in apache config file.
Date Mon, 08 Feb 2016 16:25:26 GMT
On Mon, Feb 8, 2016 at 10:20 AM, William A Rowe Jr <>

> This is worthy of discussion on docs@httpd, so please allow me to cite
> your example... Your report does suggest that we might illustrate this
> alias effect more clearly in the docs, e.g. an example like this;
>   Note that unexpected expansion may occur when trailing slashes
>   are omitted, including the case of "Alias / /foo". Given the example;
>     Alias /icons /usr/share/icons
>   A request for /icons/small.gif is mapped to /usr/share/icons/small.gif
>   A request for /icons-private/small.gif is mapped to
> /usr/share/icons-private/small.gif
>   This behavior is by-design.

When did this get mis-stated at, the information
seems most incorrect...

Alias "/image" "/ftp/pub/image"

A request for would cause the server to
return the file /ftp/pub/image/foo.gif. Only complete path segments are
matched, so the above alias would not match a request for

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