Vulnerability Note VU#927988

Overview

The IBM Lotus Domino LDAP server is vulnerable to a heap buffer overflow, which may allow a remote, unauthenticated attacker to execute arbitrary code or cause a denial of service.

Description

IBM Lotus Domino server software provides email, calendar, scheduling, and collaboration services. The LDAP component of Lotus Domino is vulnerable to a heap buffer overflow if it handles a DN (Distinguished Name) message with a string larger than 65535 bytes.

Impact

A remote, unauthenticated attacker may be able to execute arbitrary code with the privileges of the LDAP server component or cause a denial of service.

Solution

Apply an update This issue is addressed in Lotus Domino 7.0.2 Fix Pack 1 (FP1) and 6.5.6., as specified in IBM Technote 1257248.

Block or restrict access Block or restrict access to the Lotus Domino LDAP service (typically 389/tcp) from untrusted networks such as the internet.

Systems Affected (Learn More)

Vendor	Status	Date Notified	Date Updated
IBM Corporation	Affected	-	28 Mar 2007

If you are a vendor and your product is affected, let us know.

CVSS Metrics (Learn More)

Group	Score	Vector
Base	N/A	N/A
Temporal	N/A	N/A
Environmental	N/A	N/A

References

• http://www-1.ibm.com/support/docview.wss?uid=swg21257248
• http://secunia.com/advisories/24633/

Credit

This vulnerability was reported by iDefense Labs, who in turn credit an anonymous discoverer.

This document was written by Will Dormann.

Other Information

• CVE IDs: Unknown
• Date Public: 28 Mar 2007
• Date First Published: 28 Mar 2007
• Date Last Updated: 28 Mar 2007
• Severity Metric: 8.60
• Document Revision: 5