Linux Kernel 3.9 Bluetooth Subsystem sock.c rfcomm_sock_recvmsg length information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Linux Kernel 3.9. This vulnerability affects the function rfcomm_sock_recvmsg of the file net/bluetooth/rfcomm/sock.c of the component Bluetooth Subsystem. The manipulation of the argument length results in information disclosure. This vulnerability is cataloged as CVE-2013-3225. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Linux Kernel 3.9 (Operating System). It has been classified as problematic. Affected is the function rfcomm_sock_recvmsg of the file net/bluetooth/rfcomm/sock.c of the component Bluetooth Subsystem. The manipulation of the argument length with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. CVE summarizes:

The rfcomm_sock_recvmsg function in net/bluetooth/rfcomm/sock.c in the Linux kernel before 3.9-rc7 does not initialize a certain length variable, which allows local users to obtain sensitive information from kernel stack memory via a crafted recvmsg or recvfrom system call.

The weakness was shared 04/06/2013 by Mathias Krause as not defined mailinglist post (Maillist). The advisory is shared for download at lkml.org. This vulnerability is traded as CVE-2013-3225 since 04/21/2013. The exploitability is told to be easy. The attack needs to be approached locally. The exploitation doesn't require any form of authentication. 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 68940 (CentOS 6 : kernel (CESA-2013:1051)), 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 350526 (Amazon Linux Security Advisory for kernel: ALAS-2013-218).

Upgrading to version 3.9-rc7 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (83702), Tenable (68940), SecurityFocus (BID 59385†), OSVDB (92656†) and Secunia (SA53411†). The entries VDB-7933, VDB-7934, VDB-7997 and VDB-8073 are related to this item. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.2
VulDB Meta Temp Score: 5.9

VulDB Base Score: 6.2
VulDB Temp Score: 5.9
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: 68940
Nessus Name: CentOS 6 : kernel (CESA-2013:1051)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

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: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Kernel 3.9-rc7
Patch: git.kernel.org

Timelineinfo

04/06/2013 🔍
04/06/2013 +0 days 🔍
04/07/2013 +1 days 🔍
04/14/2013 +7 days 🔍
04/21/2013 +7 days 🔍
04/22/2013 +1 days 🔍
04/24/2013 +2 days 🔍
05/16/2013 +22 days 🔍
05/27/2013 +11 days 🔍
05/10/2021 +2905 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: lkml.org
Researcher: Mathias Krause
Status: Not defined
Confirmation: 🔍

CVE: CVE-2013-3225 (🔍)
GCVE (CVE): GCVE-0-2013-3225
GCVE (VulDB): GCVE-100-8484

OVAL: 🔍

X-Force: 83702
SecurityFocus: 59385 - Linux Kernel CVE-2013-3225 Local Information Disclosure Vulnerability
Secunia: 53411 - Debian update for linux-2.6, Less Critical
OSVDB: 92656
Vulnerability Center: 39719 - Linux Kernel Before 3.9-rc7 \x27rfcomm_sock_recvmsg\x27 Function Allows Local Information Disclosure Vulnerability, Low

See also: 🔍

Entryinfo

Created: 04/24/2013 11:02
Updated: 05/10/2021 08:28
Changes: 04/24/2013 11:02 (83), 04/30/2017 12:48 (4), 05/10/2021 08:28 (3)
Complete: 🔍
Committer: olku
Cache ID: 216:C9B:103

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