Public Vulnerability Reports

MySQL MaxDB Web Agent Multiple Denial of Service Vulnerabilities



MaxDB by MySQL is a re-branded and enhanced version of SAP DB, SAP AG's
open source database. MaxDB is a heavy-duty, SAP-certified open source
database that offers high availability, scalability and a comprehensive
feature set. MaxDB complements the MySQL database server, targeted for
large mySAP ERP environments and other applications that require maximum
enterprise-level database functionality. Further details are available


Two remotely exploitable denial of service conditions have been found to
exist in MySQL MaxDB and SAP DB Web Agent products.

The first vulnerability specifically exists due to a null pointer
dereference in the sapdbwa_GetUserData() function. A remote attacker can
request the webdav handler code with invalid parameters to cause a null
pointer dereference resulting in a crash of SAP DB Web Agent.

The second vulnerability is due to insufficient handling of malformed
HTTP headers. A remote attacker can submit a HTTP request with invalid
headers to cause a denial of service.


A remote attacker can send simple HTTP requests to cause MaxDB Web Agent
to crash.


iDEFENSE has confirmed the existence of these vulnerabilities in MySQL
MaxDB on Linux and Windows platforms. It is believed that all
versions prior to are affected.


Employ firewalls, access control lists or other TCP/UDP restriction
mechanisms to limit access to administrative systems and services.


The vulnerability has been addressed in MaxDB

Updated binaries (version are available from:


The Common Vulnerabilities and Exposures (CVE) project has assigned the
following names to these issues:

MySQL MaxDB Web Agent Null HTTP Header Denial of Service Vulnerability

MySQL MaxDB Web Agent GetUserData Denial of Service Vulnerability


08/20/2004    Initial vendor notification
08/24/2004    Initial vendor response
01/19/2005    Public disclosure


The discoverer of this vulnerability wishes to remain anonymous.

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Copyright © 2005 Verisign, Inc.

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