Linux Kernel input validation

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.5	$5k-$25k	0.00

Summaryinfo

A vulnerability classified as problematic has been found in Linux Kernel. The affected element is an unknown function. This manipulation causes input validation. The identification of this vulnerability is CVE-2007-2764. There is no exploit available.

Detailsinfo

A vulnerability was found in Linux Kernel (Operating System) (version now known). It has been declared as critical. Affected by this vulnerability is some unknown processing. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect availability. The summary by CVE is:

The embedded Linux kernel in certain Sun-Brocade SilkWorm switches before 20070516 does not properly handle a situation in which a non-root user creates a kernel process, which allows attackers to cause a denial of service (oops and device reboot) via unspecified vectors.

The weakness was shared 05/17/2007 (Website). The advisory is shared at sunsolve.sun.com. This vulnerability is known as CVE-2007-2764 since 05/18/2007. 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 price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 04/13/2019).

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 (34495), SecurityFocus (BID 24036†) and OSVDB (39117†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Operating System

Vendor

Linux

Name

Kernel

License

open-source

Website

Vendor: https://www.kernel.org/

CPE 2.3info

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CPE 2.2info

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

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

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/17/2007 🔍
05/17/2007 +0 days 🔍
05/18/2007 +1 days 🔍
05/18/2007 +0 days 🔍
10/24/2007 +159 days 🔍
03/13/2015 +2696 days 🔍
04/13/2019 +1492 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: sunsolve.sun.com⛔
Status: Not defined

CVE: CVE-2007-2764 (🔍)
GCVE (CVE): GCVE-0-2007-2764
GCVE (VulDB): GCVE-100-36889
X-Force: 34495
SecurityFocus: 24036 - Sun Brocade Switches Denial Of Service Vulnerability
OSVDB: 39117 - SilkWorm Switches Linux Kernel Process Creation Unspecified Remote DoS

Entryinfo

Created: 03/13/2015 14:56
Updated: 04/13/2019 21:11
Changes: 03/13/2015 14:56 (51), 04/13/2019 21:11 (2)
Complete: 🔍
Cache ID: 216:BAC:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.