October 2007

ZDI-07-056: IBM DB2 DB2JDS Multiple Vulnerabilities
http://www.zerodayinitiative.com/advisories/ZDI-07-056.html
October 10, 2007

-- CVE ID:
CVE-2007-5324

-- Affected Vendor:
IBM

-- Affected Products:
DB2 Universal Database 8.1
DB2 Universal Database 8.2

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this vulnerability since January  5, 2007 by Digital Vaccine protection filter ID 4870,4876,4877. For further product information on the TippingPoint IPS:

    http://www.tippingpoint.com

-- Vulnerability Details:
The most severe of these vulnerabilities allows remote attackers to execute arbitrary code on vulnerable installations of IBM DB2 Universal Database. Authentication is not required to exploit these vulnerabilities.

The first flaw exists in the DB2JDS service listening on TCP port 6789.
A specially crafted packet is improperly processed by an internal
sprintf() call resulting in a stack overflow which can be leveraged to execute arbitrary code.

Additionally, two DoS condition vulnerabilities were discovered. The first flaw is an overflow resulting from an invalid LANG paramater. The second DoS can be triggered by sending a packet over 32768 bytes in length, resulting in a MemTree overflow which will cause the process to terminate.

-- Vendor Response:
IBM has issued an update to correct this vulnerability. More details can be found at:

http://www-1.ibm.com/support/docview.wss?uid=swg1IY97750

-- Disclosure Timeline:
2006.11.09 - Vulnerability reported to vendor
2007.01.05 - Digital Vaccine released to TippingPoint customers 2007.10.10 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by an anonymous researcher.

-- About the Zero Day Initiative (ZDI):
Established by TippingPoint, a division of 3Com, The Zero Day Initiative
(ZDI) represents a best-of-breed model for rewarding security researchers for responsibly disclosing discovered vulnerabilities.

Researchers interested in getting paid for their security research through the ZDI can find more information and sign-up at:

    http://www.zerodayinitiative.com

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