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Oracle Database Buffer overflow vulnerabilities in procedure
DBMS_DRS.GET_PROPERTY (DB03)

AppSecInc Team SHATTER Security Advisory
http://www.appsecinc.com/resources/alerts/oracle 
Jan 18, 2007

Affected versions: Oracle Database Server versions 9iR2 and 10gR1

Risk level:  Medium

Remote exploitable:  Yes (Authentication to Database Server is needed)

Credits:  This vulnerability was discovered and researched by Esteban
Mart=EDnez Fay=F3 of Application Security Inc.

Details:
Oracle Database Server provides the DBMS_DRS package that includes
procedures used in Oracle Data Guard. This package contains the function
GET_PROPERTY which is vulnerable to buffer overflow attacks.

Impact:
Any Oracle database user with EXECUTE privilege on the package
SYS.DBMS_DRS can exploit this vulnerability. Exploitation of this
vulnerability allows an attacker to execute arbitrary code. It can also
be exploited to cause DOS (Denial of service) killing Oracle server
process.

Vendor Status:
Vendor was contacted and a patch was released.

Workaround:
Restrict access to the SYS.DBMS_DRS package.

Fix:
Apply Oracle Critical Patch Update January 2007 available at Oracle
Metalink.

Links:
http://www.oracle.com/technology/deploy/security/critical-patch-updates/cpujan2007.html 
http://www.appsecinc.com/resources/alerts/oracle 

- --
_____________________________________________
Application Security, Inc.
www.appsecinc.com 
AppSecInc is the leading provider of database security solutions for the
enterprise. AppSecInc products proactively secure enterprise
applications at more than 300 organizations around the world by
discovering, assessing, and protecting the database against rapidly
changing security threats. By securing data at its source, we enable
organizations to more confidently extend their business with customers,
partners and suppliers. Our security experts, combined with our strong
support team, deliver up-to-date application safeguards that minimize
risk and eliminate its impact on business.


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