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Vulnerability of MIME: denial of service by encapsulation

Synthesis of the vulnerability 

An attacker can create an email containing deep MIME encapsulations in order to create a denial of service in several applications.
Impacted software: OE, Microsoft Windows Mail, Norton Internet Security, Opera, SMTP protocol.
Severity of this computer vulnerability: 2/4.
Number of vulnerabilities in this bulletin: 5.
Creation date: 09/12/2008.
Références of this announce: BID-32702, CVE-2008-5424, CVE-2008-5425, CVE-2008-5426, CVE-2008-5427, CVE-2008-5428, VIGILANCE-VUL-8296.

Description of the vulnerability 

An email can contain several parts separated by MIME headers. Each part can also contain data encapsulated with MIME headers.

Some software do not limit the number of encapsulation. An attacker can therefore send an email containing several thousand parts in order to create a denial of service.

Here is a list of impacted software:
  Microsoft Outlook Express 6
  Opera Version: 9.51
  Norton Internet Security Version 15
  Kaspersky Internet Security 2009

This vulnerability type is old, and has for example impacted Sendmail (VIGILANCE-VUL-5924) and ClamAV (VIGILANCE-VUL-6398).
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This threat bulletin impacts software or systems such as OE, Microsoft Windows Mail, Norton Internet Security, Opera, SMTP protocol.

Our Vigil@nce team determined that the severity of this computer threat bulletin is medium.

The trust level is of type confirmed by the editor, with an origin of document.

This bulletin is about 5 vulnerabilities.

An attacker with a expert ability can exploit this computer threat.

Solutions for this threat 

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