Public Vulnerability Reports

Unisys Business Information Server Stack Buffer Overflow



For more information, see the vendor's site found at the following link.


Remote exploitation of a stack based buffer overflow vulnerability in Unisys's Business Information Server could allow an attacker to execute arbitrary code with the privileges of the affected service.

If attackers send a packet to the Unisys Business Information Server over a TCP port, the attacker can corrupt stack memory and gain arbitrary code execution.


Exploitation of this vulnerability results in the execution of arbitrary code with the privileges of the affected service, usually an administrative account.


iDefense has confirmed the existence of this vulnerability in Business Information Server version 10. Previous versions may also be affected.


iDefense is currently unaware of any workarounds for this issue.


Unisys has released a patch which addresses this issue. For more information, consult their advisory at the following URL:


The Common Vulnerabilities and Exposures (CVE) project has assigned the name CVE-2009-1628 to this issue. This is a candidate for inclusion in the CVE list (, which standardizes names for security problems.


06/22/2008 - Initial Contact
04/24/2009 - Second Contact Attempt
04/28/2009 - Initial Vendor Response
05/06/2009 - Clarification requested
05/06/2009 - Unisys Lawyer lodge request.
05/06/2009 - Sent Clarification.
05/06/2009 - Clarification received and new clarification requested.
05/07/2009 - Unisys request response.
05/07/2009 - iDefense response regarding PGP key
05/07/2009 - Unisys confirmation.
06/22/2009 - CVE-2009-1628 Assigned by vendor
06/25/2009 - Coordinated Public Disclosure


This vulnerability was reported to iDefense by FistFuXXer.

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Copyright © 2009 Verisign, Inc.

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