AppSecInc Security Alert: Denial of Service Vulnerability in DB2 Discovery Service

["Aaron C. Newman" <aaron@xxxxxxxxxxxxxxxxx>]

Denial of Service Vulnerability in DB2 Discovery Service

To determine if you should apply this patch, download AppDetective for
DB2 from http://www.appsecinc.com/products/appdetective/db2/

Risk level: Low

Summary:

IBM DB2 provides a UDP service used as a discovery service for locating
DB2 databases on the network. This UDP service shuts down when sent more
than 20 bytes.

Details:
IBM DB2 is a database that provides many services. One of these services
is a discovery service. This is used to locate a service when
configuring a connection. This service listens on UDP port 523.

This service typically receives a packet such as "DB2GETADDR SQL07020".
If a packet larger than 20 bytes is received by the server, the service
will shutdown.

Once the discovery service crashes, the service "DB2 - DB2DAS00" must be
restarted.

This issue is cover under the fix "IY47686: Search Discovery Listener
Denial of Service Vulnerability".

Fix:
Apply FixPak 10a from IBM. This can be downloaded from the following
location:
http://www-3.ibm.com/cgi-bin/db2www/data/db2/udb/winos2unix/support/down
load.d2w/report

Regards,
Aaron
_______________________________
Aaron C. Newman
CTO/Founder
Application Security, Inc.
www.appsecinc.com
Phone: 212-420-9270
Fax: 212-420-9680
- Securing Business by Securing Enterprise Applications -

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