Vulnerability Note VU#663786

Oracle9i Database contains remotely exploitable buffer overflow in "BFILENAME" function

Overview

A remotely exploitable buffer overflow vulnerability exists in Oracle9i Database.

I. Description

A buffer overflow vulnerability exists on all platforms in the following versions of Oracle 9i Database:

Oracle9i Database Release 2
9i Release 1
8i
8.1.7
8.0.6

A buffer overflow exists in BFILENAME. By supplying an overly long DIRECTORY parameter to BFILENAME, a remote attacker may be able to execute arbitrary code with the privileges of the vulnerable process. This process typically runs as "Oracle" on Linux and UNIX hosts and as "Local System" on Windows systems.

II. Impact

A remote attacker may be able to execute arbitrary code with the privileges of the vulnerable process. This process typically runs as "Oracle" on Linux and UNIX hosts and as "Local System" on Windows systems.

III. Solution

Oracle has published Oracle Security Alert #48 regarding this issue. Patches do not yet exist for all platforms. Please refer to Oracle Security Alert #48 for a detailed patch matrix.

Workarounds

Until a patch can be applied, the CERT/CC recommends that vulnerable sites

disable unnecessary Oracle services
run Oracle services with the least privilege
restrict network access to Oracle services

Systems Affected

Vendor	Status	Date Notified	Date Updated
Oracle Corporation	Vulnerable	18-Feb-2003

References

http://www.nextgenss.com/advisories/ora-bfilebo.txt
http://otn.oracle.com/deploy/security/pdf/2003alert48.pdf
http://www.securityfocus.com/archive/1/312058

Credit

This vulnerability was discovered by David Litchfield (david@ngssoftware.com) of Next Generation Security Software Ltd. The CERT/CC thanks both Next Generation Security Software Ltd and Oracle for providing information upon which this document is based.

This document was written by Ian A Finlay.

Other Information

Date Public:	2003-02-11
Date First Published:	2003-02-18
Date Last Updated:	2003-02-19
CERT Advisory:
CVE-ID(s):
NVD-ID(s):
US-CERT Technical Alerts:
Metric:	27.00
Document Revision:	7

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