Linux Kernel 2.6 tpm_read information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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4.0$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Linux Kernel 2.6. This vulnerability affects the function tpm_read. This manipulation causes information disclosure. The identification of this vulnerability is CVE-2011-1162. There is no exploit available.

Detailsinfo

A vulnerability was found in Linux Kernel 2.6 (Operating System). It has been declared as problematic. Affected by this vulnerability is the function tpm_read. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality. The summary by CVE is:

The tpm_read function in the Linux kernel 2.6 does not properly clear memory, which might allow local users to read the results of the previous TPM command.

The weakness was shared 01/27/2012 as Bug 732629 as not defined bug report (Bugzilla). It is possible to read the advisory at bugzilla.redhat.com. This vulnerability is known as CVE-2011-1162 since 03/03/2011. The exploitation appears to be easy. Attacking locally is a requirement. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 68394 (Oracle Linux 5 : kernel (ELSA-2011-1479)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 350721 (Amazon Linux Security Advisory for kernel: ALAS-2011-026).

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 Tenable (68394), SecurityFocus (BID 50764†) and Vulnerability Center (SBV-35293†). The entries VDB-5765, VDB-60955, VDB-60835 and VDB-60834 are related to this item. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

VulDB Base Score: 4.0
VulDB Temp Score: 4.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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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: 68394
Nessus Name: Oracle Linux 5 : kernel (ELSA-2011-1479)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 881051
OpenVAS Name: CentOS Update for kernel CESA-2011:1479 centos5 i386
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/03/2011 🔍
11/22/2011 +264 days 🔍
11/22/2011 +0 days 🔍
01/27/2012 +66 days 🔍
01/27/2012 +0 days 🔍
06/11/2012 +136 days 🔍
07/12/2013 +396 days 🔍
03/23/2015 +619 days 🔍
11/29/2021 +2443 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: Bug 732629
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-1162 (🔍)
GCVE (CVE): GCVE-0-2011-1162
GCVE (VulDB): GCVE-100-60019

OVAL: 🔍

SecurityFocus: 50764 - Linux Kernel 'tpm_read()' Information Disclosure Vulnerability
Vulnerability Center: 35293 - Linux Kernel 2.6 tpm_read Function Local Information Disclosure Vulnerability, Medium

See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 11/29/2021 08:29
Changes: 03/23/2015 16:50 (63), 04/13/2017 17:12 (11), 11/29/2021 08:29 (3)
Complete: 🔍
Cache ID: 216:801:103

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