Linux Kernel 3.0.62 isofs_export_encode_fh 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, was found in Linux Kernel 3.0.62. Impacted is the function isofs_export_encode_fh. Executing a manipulation can lead to information disclosure. This vulnerability is tracked as CVE-2012-6549. No exploit exists.

Detailsinfo

A vulnerability was found in Linux Kernel 3.0.62 (Operating System). It has been declared as problematic. This vulnerability affects the function isofs_export_encode_fh. 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. CVE summarizes:

The isofs_export_encode_fh function in fs/isofs/export.c in the Linux kernel before 3.6 does not initialize a certain structure member, which allows local users to obtain sensitive information from kernel heap memory via a crafted application.

The weakness was disclosed 03/15/2013 (Website). The advisory is shared for download at kernel.org. This vulnerability was named CVE-2012-6549 since 03/14/2013. The attack needs to be approached locally. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1592.

The vulnerability scanner Nessus provides a plugin with the ID 66494 (Ubuntu 10.04 LTS : linux-ec2 vulnerabilities (USN-1829-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu 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 (82872), Tenable (66494), SecurityFocus (BID 58381†) and Vulnerability Center (SBV-41784†). The entries VDB-7907, VDB-7908, VDB-58121 and VDB-63771 are pretty similar. Once again VulDB remains the best source 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: 🔍
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: 66494
Nessus Name: Ubuntu 10.04 LTS : linux-ec2 vulnerabilities (USN-1829-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 892668
OpenVAS Name: Debian Security Advisory DSA 2668-1 (linux-2.6 - privilege escalation/denial of service/information leak
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Patch: fe685aabf7c8c9f138e5ea900954d295bf229175

Timelineinfo

03/05/2013 🔍
03/14/2013 +9 days 🔍
03/15/2013 +1 days 🔍
03/15/2013 +0 days 🔍
05/17/2013 +63 days 🔍
10/07/2013 +143 days 🔍
03/24/2015 +533 days 🔍
01/01/2022 +2475 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: USN-1829-1
Status: Not defined
Confirmation: 🔍

CVE: CVE-2012-6549 (🔍)
GCVE (CVE): GCVE-0-2012-6549
GCVE (VulDB): GCVE-100-63772

OVAL: 🔍

X-Force: 82872
SecurityFocus: 58381
Vulnerability Center: 41784 - Linux Kernel Prior to 3.6 Local Information Disclosure Vulnerability Due to a Flaw In The isofs_export_encode_fh Function, Low

See also: 🔍

Entryinfo

Created: 03/24/2015 12:22
Updated: 01/01/2022 09:12
Changes: 03/24/2015 12:22 (67), 05/12/2017 21:32 (3), 01/01/2022 09:08 (5), 01/01/2022 09:12 (2)
Complete: 🔍
Cache ID: 216:E83:103

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