Linux Kernel up to 3.5.x udf Subsystem fs/udf/namei.c information disclosure

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.
3.8	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Linux Kernel up to 3.5.x. This vulnerability affects unknown code of the file fs/udf/namei.c of the component udf Subsystem. Executing a manipulation can lead to information disclosure. This vulnerability is tracked as CVE-2012-6138. No exploit exists. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability classified as problematic was found in Linux Kernel up to 3.5.x (Operating System). This vulnerability affects some unknown functionality of the file fs/udf/namei.c of the component udf Subsystem. 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:

** REJECT ** DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: CVE-2012-6536, CVE-2012-6537, CVE-2012-6538, CVE-2012-6539, CVE-2012-6540, CVE-2012-6541, CVE-2012-6542, CVE-2012-6543, CVE-2012-6544, CVE-2012-6545, CVE-2012-6546, CVE-2012-6547, CVE-2012-6548, CVE-2012-6549. Reason: This candidate is a duplicate of CVE-2012-6536, CVE-2012-6537, CVE-2012-6538, CVE-2012-6539, CVE-2012-6540, CVE-2012-6541, CVE-2012-6542, CVE-2012-6543, CVE-2012-6544, CVE-2012-6545, CVE-2012-6546, CVE-2012-6547, CVE-2012-6548, and CVE-2012-6549. Notes: All CVE users should reference one or more of CVE-2012-6536, CVE-2012-6537, CVE-2012-6538, CVE-2012-6539, CVE-2012-6540, CVE-2012-6541, CVE-2012-6542, CVE-2012-6543, CVE-2012-6544, CVE-2012-6545, CVE-2012-6546, CVE-2012-6547, CVE-2012-6548, and CVE-2012-6549 instead of this candidate. All references and descriptions in this candidate have been removed to prevent accidental usage.

The weakness was disclosed 03/05/2013 by Mathias Krause as 2013/q1/589 as not defined mailinglist post (oss-sec). The advisory is shared for download at seclists.org. The public release happened without coordination with the vendor. This vulnerability was named CVE-2012-6138 since 12/06/2012. The exploitation appears to be easy. 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.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at seclists.org. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at OSVDB (90962†) and Secunia (SA53141†). The entries VDB-7907, VDB-7908, VDB-7909 and VDB-7910 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Operating System

Vendor

Linux

Name

Kernel

Version

License

open-source

Website

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

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

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: seclists.org

Timelineinfo

07/11/2012 🔍
12/06/2012 +148 days 🔍
03/05/2013 +89 days 🔍
03/08/2013 +3 days 🔍
03/15/2013 +7 days 🔍
04/19/2013 +35 days 🔍
08/18/2017 +1582 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: 2013/q1/589
Researcher: Mathias Krause
Status: Not defined

CVE: CVE-2012-6138 (🔍)
GCVE (CVE): GCVE-0-2012-6138
GCVE (VulDB): GCVE-100-7912
Secunia: 53141 - Ubuntu update for kernel, Less Critical
OSVDB: 90962

See also: 🔍

Entryinfo

Created: 03/08/2013 14:19
Updated: 08/18/2017 13:52
Changes: 03/08/2013 14:19 (48), 08/18/2017 13:52 (9)
Complete: 🔍
Committer:
Cache ID: 216:B83:103

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