David Litchfield of NGSSoftware has discovered multiple critical and high 
risk vulnerabilities in Oracle's Database Server. Versions affected include

Oracle Database 10g Release 2, versions 10.2.0.1, 10.2.0.2
Oracle Database 10g Release 1, versions 10.1.0.4, 10.1.0.5
Oracle9i Database Release 2, versions 9.2.0.6, 9.2.0.7
Oracle8i Database Release 3, version 8.1.7.4

Oracle has released a patch that addresses these issues. The announcement of 
this patch can be found here:

http://www.oracle.com/technology/deploy/security/pdf/cpuapr2006.html 

Patches can be downloaded from the Metalink website - 
http://metalink.oracle.com/. 

NGSSoftware are going to withhold details about these flaws for three 
months. Full
details will be published on the Tuesday, 18th of July 2006. This three 
month window
will allow Oracle database administrators the time needed to test and apply 
the patch
set before the details are released to the general public. This reflects 
NGSSoftware's approach to responsible disclosure. Our stated policy can be 
found here: http://www.ngssoftware.com/disclosure.pdf 


NGSSQuirreL for Oracle, NGSSoftware's advanced vulnerability assessment 
scanner and security manager for Oracle, has been updated to check for and 
positively identify these flaws in Oracle database servers on the network. 
More information about NGSSQuirreL for Oracle can be found at 
http://www.ngssoftware.com/squirrelora.htm. 

NGSSoftware Insight Security Research
http://www.ngssoftware.com/ 
+44(0)208 401 0070