Linux Kernel 3.0.62 __tun_chr_ioctl 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 classified as problematic was found in Linux Kernel 3.0.62. This vulnerability affects the function __tun_chr_ioctl. Such manipulation leads to information disclosure. This vulnerability is referenced as CVE-2012-6547. No exploit is available.

Detailsinfo

A vulnerability was found in Linux Kernel 3.0.62 (Operating System) and classified as problematic. Affected by this issue is the function __tun_chr_ioctl. 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 __tun_chr_ioctl function in drivers/net/tun.c in the Linux kernel before 3.6 does not initialize a certain structure, which allows local users to obtain sensitive information from kernel stack memory via a crafted application.

The weakness was published 03/15/2013 by Mathias Krause (Website). The advisory is available at kernel.org. This vulnerability is handled as CVE-2012-6547 since 03/14/2013. Local access is required to approach this attack. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1592 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 66204 (CentOS 6 : kernel (CESA-2013:0744)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 166795 (SUSE Enterprise Linux Security Update for Linux Kernel (SUSE-SU-2014:0536-1)).

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 (82870), Tenable (66204), SecurityFocus (BID 58409†) and Vulnerability Center (SBV-39437†). Similar entries are available at VDB-7842, VDB-7907, VDB-7908 and VDB-58121. If you want to get best quality of vulnerability data, you may have to visit VulDB.

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

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EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 66204
Nessus Name: CentOS 6 : kernel (CESA-2013:0744)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 881723
OpenVAS Name: CentOS Update for kernel CESA-2013:0744 centos6
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Patch: a117dacde0288f3ec60b6e5bcedae8fa37ee0dfc

Timelineinfo

03/05/2013 🔍
03/05/2013 +0 days 🔍
03/14/2013 +9 days 🔍
03/15/2013 +1 days 🔍
03/15/2013 +0 days 🔍
05/06/2013 +52 days 🔍
03/24/2015 +687 days 🔍
01/01/2022 +2475 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: RHSA-2013:0744
Researcher: Mathias Krause
Status: Not defined
Confirmation: 🔍

CVE: CVE-2012-6547 (🔍)
GCVE (CVE): GCVE-0-2012-6547
GCVE (VulDB): GCVE-100-63770

OVAL: 🔍

X-Force: 82870
SecurityFocus: 58409 - RETIRED: Linux Kernel Multiple Local Information Disclosure Vulnerabilities
Vulnerability Center: 39437 - Linux Kernel Before 3.6 Local Information Disclosure Vulnerability (CVE-2012-6547), Low

See also: 🔍

Entryinfo

Created: 03/24/2015 12:22
Updated: 01/01/2022 08:59
Changes: 03/24/2015 12:22 (64), 04/28/2017 18:14 (8), 01/01/2022 08:56 (5), 01/01/2022 08:57 (1), 01/01/2022 08:59 (2)
Complete: 🔍
Cache ID: 216::103

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