Linux Kernel 3.9 Bluetooth Subsystem net/bluetooth/sco.c sco_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, which was classified as problematic, was found in Linux Kernel 3.9. Impacted is the function sco_sock_recvmsg of the file net/bluetooth/sco.c of the component Bluetooth Subsystem. Such manipulation of the argument length leads to information disclosure. This vulnerability is documented as CVE-2013-3226. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel 3.9 (Operating System). It has been rated as problematic. Affected by this issue is the function sco_sock_recvmsg of the file net/bluetooth/sco.c of the component Bluetooth Subsystem. The manipulation of the argument length 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 sco_sock_recvmsg function in net/bluetooth/sco.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 released 04/06/2013 by Mathias Krause as not defined mailinglist post (Maillist). The advisory is available at lkml.org. This vulnerability is handled as CVE-2013-3226 since 04/21/2013. The exploitation is known to be easy. 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 66590 (Ubuntu 13.04 : linux vulnerabilities (USN-1837-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks.

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 (83701), Tenable (66590), SecurityFocus (BID 59382†), OSVDB (92656†) and Secunia (SA53411†). Entries connected to this vulnerability are available at VDB-7933, VDB-7934, VDB-8173 and VDB-8485. If you want to get best quality of vulnerability data, you may have to visit VulDB.

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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

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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: 66590
Nessus Name: Ubuntu 13.04 : linux vulnerabilities (USN-1837-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 841436
OpenVAS Name: Ubuntu Update for linux USN-1837-1
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
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-2013-3226 (🔍)
GCVE (CVE): GCVE-0-2013-3226
GCVE (VulDB): GCVE-100-8486

OVAL: 🔍

X-Force: 83701
SecurityFocus: 59382 - Linux Kernel CVE-2013-3226 Local Information Disclosure Vulnerability
Secunia: 53411 - Debian update for linux-2.6, Less Critical
OSVDB: 92656
Vulnerability Center: 39720 - Linux Kernel Before 3.9-rc7 \x27sco_sock_recvmsg\x27 Function Allows Local Information Disclosure Vulnerability, Low

See also: 🔍

Entryinfo

Created: 04/24/2013 11:02
Updated: 05/10/2021 08:33
Changes: 04/24/2013 11:02 (81), 04/30/2017 12:48 (4), 05/10/2021 08:33 (3)
Complete: 🔍
Committer: olku
Cache ID: 216:7BE:103

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