Oracle Database 11g 11.1.0.7 Listener ncrfintn denial of service

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability was found in Oracle Database 11g 11.1.0.7 and classified as problematic. This issue affects the function ncrfintn of the component Listener. Such manipulation leads to denial of service. This vulnerability is traded as CVE-2009-0991. Furthermore, there is an exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Oracle Database 11g 11.1.0.7 (Database Software). It has been rated as problematic. Affected by this issue is the function ncrfintn of the component Listener. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. CVE summarizes:

Unspecified vulnerability in the Listener component in Oracle Database 9.2.0.8, 9.2.0.8DV, 10.1.0.5, 10.2.0.4, and 11.1.0.7 allows remote attackers to affect availability via unknown vectors.

The bug was discovered 04/14/2009. The weakness was shared 04/15/2009 by Esteban Martinez Fayo (iDefense) with Application Security, Inc. (Website). The advisory is shared for download at us-cert.gov. This vulnerability is handled as CVE-2009-0991 since 03/19/2009. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details as well as a public exploit are known.

A public exploit has been developed by Dennis Yurichev in Python and been published 6 days after the advisory. The exploit is available at securityfocus.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 56064 (Oracle Database Multiple Vulnerabilities (April 2009 CPU)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Databases and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 19463 (Oracle April 2009 Security Update Multiple Vulnerabilities).

Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 8052.

The vulnerability is also documented in the databases at X-Force (50026), Exploit-DB (8507), Tenable (56064), SecurityFocus (BID 34461†) and OSVDB (53737†). The entries VDB-3953, VDB-3955, VDB-47767 and VDB-47766 are related to this item. VulDB is the best source for vulnerability data and more expert information about this specific topic.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Dennis Yurichev
Programming Language: 🔍
Download: 🔍

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Current Price Estimation: 🔍

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Nessus ID: 56064
Nessus Name: Oracle Database Multiple Vulnerabilities (April 2009 CPU)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 64143
OpenVAS Name: Ubuntu USN-763-1 (xine-lib)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
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TippingPoint: 🔍

McAfee IPS: 🔍
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ISS Proventia IPS: 🔍
PaloAlto IPS: 🔍
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Timelineinfo

03/19/2009 🔍
04/09/2009 +21 days 🔍
04/09/2009 +0 days 🔍
04/14/2009 +5 days 🔍
04/14/2009 +0 days 🔍
04/15/2009 +1 days 🔍
04/15/2009 +0 days 🔍
04/15/2009 +0 days 🔍
04/15/2009 +0 days 🔍
04/15/2009 +0 days 🔍
04/20/2009 +4 days 🔍
04/21/2009 +1 days 🔍
04/21/2009 +0 days 🔍
11/16/2011 +939 days 🔍
03/17/2015 +1217 days 🔍
10/01/2025 +3851 days 🔍

Sourcesinfo

Vendor: oracle.com

Advisory: us-cert.gov
Researcher: Esteban Martinez Fayo (iDefense)
Organization: Application Security, Inc.
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2009-0991 (🔍)
GCVE (CVE): GCVE-0-2009-0991
GCVE (VulDB): GCVE-100-47744
X-Force: 50026
SecurityFocus: 34461 - Oracle April 2009 Critical Patch Update Multiple Vulnerabilities
Secunia: 34693
OSVDB: 53737 - Oracle Database Listener oranro11.dll ncrfintn() Function Remote DoS
SecurityTracker: 1022052
Vulnerability Center: 21646 - [cpuapr2009-099563] Oracle Database 9/10/11 Listener Component Vulnerability, Medium

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 03/17/2015 23:38
Updated: 10/01/2025 21:33
Changes: 03/17/2015 23:38 (102), 09/01/2019 21:11 (2), 10/01/2025 21:33 (16)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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