[NEWS] Oracle Database DBMS_AQELM Package Buffer Overflow Vulnerability

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Oracle Database DBMS_AQELM Package Buffer Overflow Vulnerability
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SUMMARY

<http://www.oracle.com/database/index.html> Oracle Database Server is "a
family of database products that range from personal databases to
enterprise solutions". Remote exploitation of a buffer overflow
vulnerability in the DBMS_AQELM package in Oracle Corp.'s Oracle Database
product allows attackers to execute arbitrary code with the privileges of
the database user.

DETAILS

Vulnerable Systems:
* Oracle Database version 10.2.0.3 and 11.1.0.6 with the October 2007 CPU
applied

This vulnerability exists due to improper input validation when handling a
parameter passed to a procedure within the DBMS_AQELM package. Since the
parameter is not properly validated, providing a long string can cause a
buffer overflow to occur. This results in corruption of the database and
could allow for the execution of arbitrary code as the database user.

Analysis:
Exploitation of this vulnerability results in database corruption and
possibly arbitrary code execution with the privileges of the oracle user
on Unix, and the "SYSTEM" user on Windows. This grants an attacker full
reign over the database.

In order to exploit this vulnerability, an attacker must have access to a
database account with privilege to execute the DBMS_AQELM package. In a
default install, users with the Advanced Queue Administrator Role
(AQ_ADMINISTRATOR_ROLE) have this privilege.

Vendor response:
Oracle Corp. has addressed this vulnerability with the release of their
July 2008 Critical Patch Update. For more information, visit the following
URL.

<http://www.oracle.com/technology/deploy/security/critical-patch-updates/cpujul2008.html> http://www.oracle.com/technology/deploy/security/critical-patch-updates/cpujul2008.html

CVE Information:
<http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2607>
CVE-2008-2607

Disclosure timeline:
12/18/2007 - Initial vendor notification
12/19/2007 - Initial vendor response
07/15/2008 - Coordinated public disclosure


ADDITIONAL INFORMATION

The information has been provided by
<mailto:idlabs-advisories@xxxxxxxxxxxx> iDefense Labs Security Advisories.
The original article can be found at:
<http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=726>
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=726



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