Linux Kernel 3.9 net/ax25/af_ax25.c ax25_recvmsg information disclosure

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

A vulnerability classified as problematic has been found in Linux Kernel 3.9 (Operating System). This affects the function ax25_recvmsg of the file net/ax25/af_ax25.c of the component Linux Kernel. The manipulation 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. The summary by CVE is:

The ax25_recvmsg function in net/ax25/af_ax25.c in the Linux kernel before 3.9-rc7 does not initialize a certain data structure, which allows local users to obtain sensitive information from kernel stack memory via a crafted recvmsg or recvfrom system call.

The weakness was disclosed 04/06/2013 as not defined mailinglist post (Maillist). It is possible to read the advisory at lkml.org. This vulnerability is uniquely identified as CVE-2013-3223 since 04/21/2013. The exploitability is told to be easy. Attacking locally is a requirement. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 66431 (Debian DSA-2668-1 : linux-2.6 - privilege escalation/denial of service/information leak), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 166437 (OpenSuSE Security Update for 3.0.80 Kernel Update (openSUSE-SU-2013:1187-1)).

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 (83704), Tenable (66431), SecurityFocus (BID 59380†), OSVDB (92657†) and Secunia (SA53411†). The entries VDB-7779, VDB-7812, VDB-7933 and VDB-7934 are pretty similar.

Productinfo

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Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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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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VulDB Base Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

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

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

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EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 66431
Nessus Name: Debian DSA-2668-1 : linux-2.6 - privilege escalation/denial of service/information leak
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 +6 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
Status: Not defined
Confirmation: 🔍

CVE: CVE-2013-3223 (🔍)
OVAL: 🔍

X-Force: 83704
SecurityFocus: 59380
Secunia: 53411 - Debian update for linux-2.6, Less Critical
OSVDB: 92657
Vulnerability Center: 39717 - Linux Kernel Before 3.9-rc7 \x27ax25_recvmsg\x27 Function Allows Local Information Disclosure Vulnerability, Low

See also: 🔍

Entryinfo

Created: 04/24/2013 11:22 AM
Updated: 05/10/2021 08:37 AM
Changes: 04/24/2013 11:22 AM (81), 04/30/2017 12:47 PM (1), 05/10/2021 08:35 AM (4), 05/10/2021 08:37 AM (1)
Complete: 🔍
Committer: olku
Cache ID: 18:797:40

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