Linux Kernel 3.0.62 net/xfrm/xfrm_user.c copy_to_user_auth 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 was found in Linux Kernel 3.0.62. It has been classified as problematic. Impacted is the function copy_to_user_auth of the file net/xfrm/xfrm_user.c. The manipulation leads to information disclosure. This vulnerability is documented as CVE-2012-6538. There is not any exploit available.

Detailsinfo

A vulnerability was found in Linux Kernel 3.0.62 (Operating System) and classified as problematic. This issue affects the function copy_to_user_auth of the file net/xfrm/xfrm_user.c. 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. The summary by CVE is:

The copy_to_user_auth function in net/xfrm/xfrm_user.c in the Linux kernel before 3.6 uses an incorrect C library function for copying a string, which allows local users to obtain sensitive information from kernel heap memory by leveraging the CAP_NET_ADMIN capability.

The weakness was released 03/15/2013 (Website). The advisory is shared at kernel.org. The identification of this vulnerability is CVE-2012-6538 since 03/14/2013. An attack has to be approached locally. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

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 166783 (SUSE Enterprise Linux Security Update for Linux Kernel (SUSE-SU-2014:0287-1)).

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 (82861), Tenable (66204), SecurityFocus (BID 58409†), Secunia (SA51409†) and Vulnerability Center (SBV-42625†). Entries connected to this vulnerability are available at VDB-5386, VDB-5571, VDB-5582 and VDB-5656. Several companies clearly confirm that VulDB is the primary source for best 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

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

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Patch: 4c87308bdea31a7b4828a51f6156e6f721a1fcc9

Timelineinfo

11/30/2012 🔍
03/05/2013 +95 days 🔍
03/14/2013 +9 days 🔍
03/15/2013 +1 days 🔍
03/15/2013 +0 days 🔍
12/18/2013 +278 days 🔍
03/24/2015 +461 days 🔍
01/01/2022 +2475 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: RHSA-2013:0744
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2012-6538 (🔍)
GCVE (CVE): GCVE-0-2012-6538
GCVE (VulDB): GCVE-100-63761

OVAL: 🔍

X-Force: 82861
SecurityFocus: 58409
Secunia: 51409 - Ubuntu update for linux, linux-ti-omap4, and linux-lts-backport-oneiric, Not Critical
Vulnerability Center: 42625 - Linux Kernel 3.* Before 3.6 Local Leakage of Sensitive Information (CVE-2012-6538), Low

See also: 🔍

Entryinfo

Created: 03/24/2015 12:22
Updated: 01/01/2022 08:17
Changes: 03/24/2015 12:22 (63), 05/18/2017 08:18 (6), 01/01/2022 08:10 (5), 01/01/2022 08:15 (1), 01/01/2022 08:17 (2)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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