Security Vulnerability: DHOST Content-Length Header Heap Overflow

This document (7000087) is provided subject to the disclaimer at the end of this document.

Environment

Novell eDirectory 8.8 for All Platforms
Novell eDirectory 8.7.3 for All Platforms

Situation

Exploit of the Content-Length can allow an attacker to set a zero sized buffer which a copy would then result in a buffer overflow and cause eDirectory to crash.

Exploitation of this vulnerability doesn't require authentication.

Exploitation of this vulnerability can result in a denial of service or arbitrary execution of code.

Exploitation requires network access.

Resolution

For eDirectory 8.8:
Apply eDirectory 8.8.3

For eDirectory 8.7.3:
Apply eDirectory 8.7.3.10 ftf1

Additional Information

ZDI-08-063: eDirectory Content-Length Header Heap Overflow

http://www.zerodayinitiative.com/advisories/ZDI-08-063.html

This vulnerability was reported by Zero Day Initiative (ZDI) established by TippingPoint, a division of 3Com.

CVE-2008-4478

+ Advanced eDirectory Troubleshooting

Document

Document ID:	7000087
Creation Date:	04-14-2008
Modified Date:	10-15-2009
Novell Product:	eDirectory

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