Linux Kernel 2.6.20.2 denial of service

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

A vulnerability was found in Linux Kernel 2.6.20.2 (Operating System). It has been rated as critical. Affected by this issue is an unknown part. 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:

nfnetlink_log in netfilter in the Linux kernel before 2.6.20.3 allows attackers to cause a denial of service (crash) via unspecified vectors involving the (1) nfulnl_recv_config function, (2) using "multiple packets per netlink message", and (3) bridged packets, which trigger a NULL pointer dereference.

The bug was discovered 03/13/2007. The weakness was presented 03/14/2007 with Kernel.org (Website). The advisory is available at kernel.org. This vulnerability is handled as CVE-2007-1496 since 03/16/2007. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 37 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 67495 (Oracle Linux 5 : kernel (ELSA-2007-0347)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 156097 (Oracle Enterprise Linux Update for Kernel (ELSA-2007-0347)).

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at kernel.org. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published 3 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (33208) and Tenable (67495). See 2979, 3041, 3146 and 3293 for similar entries.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.7

VulDB Base Score: 7.5
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

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

Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 67495
Nessus Name: Oracle Linux 5 : kernel (ELSA-2007-0347)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 58340
OpenVAS Name: Debian Security Advisory DSA 1289-1 (linux-2.6)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: kernel.org

Timelineinfo

02/05/2007 🔍
03/13/2007 +36 days 🔍
03/13/2007 +0 days 🔍
03/13/2007 +0 days 🔍
03/14/2007 +1 days 🔍
03/14/2007 +0 days 🔍
03/16/2007 +1 days 🔍
03/16/2007 +0 days 🔍
03/26/2007 +10 days 🔍
05/13/2007 +48 days 🔍
05/17/2007 +4 days 🔍
05/20/2007 +3 days 🔍
07/12/2013 +2245 days 🔍
07/19/2019 +2198 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: kernel.org
Organization: Kernel.org
Status: Not defined
Confirmation: 🔍

CVE: CVE-2007-1496 (🔍)
OVAL: 🔍

X-Force: 33208
Vulnerability Center: 15168 - Linux Kernel Denial of Service via nfnetlink_log in netfilter, Medium
SecurityFocus: 22946 - Linux Kernel Netfilter NFNetLink_Log Multiple NULL Pointer Dereference Vulnerabilities
Secunia: 25288
OSVDB: 33027 - Linux Kernel net/netfilter/nfnetlink_log.c Crafted Packet Remote DoS
Vupen: ADV-2007-0944

See also: 🔍

Entryinfo

Created: 03/26/2007 10:55
Updated: 07/19/2019 14:30
Changes: 03/26/2007 10:55 (95), 07/19/2019 14:30 (1)
Complete: 🔍
Cache ID: 18:ABF:103

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