Linux Kernel 2.6.21 information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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3.8$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Linux Kernel 2.6.21. Affected by this issue is some unknown functionality. Such manipulation leads to information disclosure. This vulnerability is uniquely identified as CVE-2007-3850. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Linux Kernel 2.6.21 (Operating System). It has been rated as problematic. Affected by this issue is an unknown part. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. CVE summarizes:

The eHCA driver in Linux kernel 2.6 before 2.6.22, when running on PowerPC, does not properly map userspace resources, which allows local users to read portions of physical address space.

The issue has been introduced in 04/26/2007. The weakness was disclosed 10/23/2007 with Red Hat (Website). The advisory is shared for download at rhn.redhat.com. This vulnerability is handled as CVE-2007-3850 since 07/18/2007. The attack needs to be approached locally. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1592.

The vulnerability was handled as a non-public zero-day exploit for at least 180 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 43654 (CentOS 5 : kernel (CESA-2007:0940)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 156026 (Oracle Enterprise Linux Update for Kernel (ELSA-2007-0940)).

Upgrading eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (43654), SecurityFocus (BID 26161†), OSVDB (45488†), Secunia (SA27322†) and Vulnerability Center (SBV-16681†). The entries VDB-3335, VDB-37923, VDB-37590 and VDB-39393 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.0
VulDB Meta Temp Score: 3.8

VulDB Base Score: 4.0
VulDB Temp Score: 3.8
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: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 43654
Nessus Name: CentOS 5 : kernel (CESA-2007:0940)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 80056
OpenVAS Name: Oracle Linux Local Check: ELSA-2007-0940
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

04/26/2007 🔍
07/18/2007 +83 days 🔍
10/22/2007 +96 days 🔍
10/22/2007 +0 days 🔍
10/23/2007 +1 days 🔍
10/23/2007 +0 days 🔍
10/23/2007 +0 days 🔍
10/23/2007 +0 days 🔍
10/28/2007 +5 days 🔍
05/22/2008 +207 days 🔍
01/06/2010 +593 days 🔍
03/16/2015 +1895 days 🔍
07/29/2019 +1596 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: rhn.redhat.com
Organization: Red Hat
Status: Not defined
Confirmation: 🔍

CVE: CVE-2007-3850 (🔍)
GCVE (CVE): GCVE-0-2007-3850
GCVE (VulDB): GCVE-100-39392

OVAL: 🔍

SecurityFocus: 26161 - Linux Kernel eHCA Driver Physical Address Space Information Disclosure Vulnerability
Secunia: 27322
OSVDB: 45488 - Linux Kernel on PowerPC eHCA Driver Arbitrary Physical Address Space Disclosure
Vulnerability Center: 16681 - Linux Kernel 2.6 before 2.6.22 Running on PowerPC Local Sensitive Information Disclosure, Low

See also: 🔍

Entryinfo

Created: 03/16/2015 12:18
Updated: 07/29/2019 11:53
Changes: 03/16/2015 12:18 (76), 07/29/2019 11:53 (6)
Complete: 🔍
Cache ID: 216:87C:103

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

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