Oracle9i 9.0/9.0.1 Transparent Network Substrate resource consumption

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Oracle9i 9.0/9.0.1. This affects an unknown function of the component Transparent Network Substrate. This manipulation causes resource consumption. This vulnerability is registered as CVE-2002-0509. No exploit is available.

Detailsinfo

A vulnerability was found in Oracle9i 9.0/9.0.1 (Database Software). It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the component Transparent Network Substrate. The manipulation with an unknown input leads to a resource consumption vulnerability. The CWE definition for the vulnerability is CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. As an impact it is known to affect availability. The summary by CVE is:

Transparent Network Substrate (TNS) Listener in Oracle 9i 9.0.1.1 allows remote attackers to cause a denial of service (CPU consumption) via a single malformed TCP packet to port 1521.

The weakness was published 08/12/2002 (Website). The advisory is shared at securityfocus.com. This vulnerability is known as CVE-2002-0509. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 19057 (Oracle 9i TNS Denial of Service and ANSI Outer Join Access Control Bypass Vulnerabilities).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (8657), SecurityFocus (BID 4391†) and Vulnerability Center (SBV-3880†). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
McAfee IPS: 🔍
McAfee IPS Version: 🔍

ISS Proventia IPS: 🔍

Timelineinfo

03/28/2002 🔍
08/12/2002 +137 days 🔍
08/12/2002 +0 days 🔍
08/12/2002 +0 days 🔍
02/29/2004 +566 days 🔍
07/22/2014 +3796 days 🔍
09/16/2025 +4074 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Status: Not defined

CVE: CVE-2002-0509 (🔍)
GCVE (CVE): GCVE-0-2002-0509
GCVE (VulDB): GCVE-100-18565
X-Force: 8657
SecurityFocus: 4391 - Oracle 9i TNS Denial of Service Vulnerability
Vulnerability Center: 3880 - DoS in Oracle 9i Transparent Network Substrate (TNS) Listener via Single Malformed TCP Packet, High

Entryinfo

Created: 07/22/2014 22:16
Updated: 09/16/2025 13:23
Changes: 07/22/2014 22:16 (57), 05/20/2019 10:36 (2), 09/16/2025 13:23 (18)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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