Linux Kernel Reliable Datagram Sockets information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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3.0$0-$5k0.00

A vulnerability was found in Linux Kernel (Operating System) (version unknown). It has been rated as problematic. Affected by this issue is an unknown function of the component Reliable Datagram Sockets. 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. CVE summarizes:

The rds_recvmsg function in net/rds/recv.c in the Linux kernel before 3.0.44 does not initialize a certain structure member, which allows local users to obtain potentially sensitive information from kernel stack memory via a (1) recvfrom or (2) recvmsg system call on an RDS socket.

The weakness was shared 09/14/2012 by Jay Fenlason and Doug Ledford as confirmed advisory (Website). The advisory is shared for download at ubuntu.com. This vulnerability is handled as CVE-2012-3430 since 06/14/2012. The exploitation is known to be easy. The attack needs to be approached locally. The successful exploitation requires a simple authentication. Technical details are unknown but a public exploit is available. The MITRE ATT&CK project declares the attack technique as T1592.

A public exploit has been developed in ANSI C. The exploit is available at securityfocus.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 69608 (Amazon Linux AMI : kernel (ALAS-2012-118)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Amazon Linux 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)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at ubuntu.com. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (77241) and Tenable (69608). The entries 5386, 5571, 5582 and 5656 are related to this item.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.3
VulDB Meta Temp Score: 3.0

VulDB Base Score: 3.3
VulDB Temp Score: 3.0
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: 🔍

Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 69608
Nessus Name: Amazon Linux AMI : kernel (ALAS-2012-118)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 881508
OpenVAS Name: CentOS Update for kernel CESA-2012:1304 centos6
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Patch: ubuntu.com

Timelineinfo

06/14/2012 🔍
07/26/2012 +42 days 🔍
07/26/2012 +0 days 🔍
09/14/2012 +50 days 🔍
09/14/2012 +0 days 🔍
09/17/2012 +3 days 🔍
09/18/2012 +1 days 🔍
09/24/2012 +6 days 🔍
09/25/2012 +1 days 🔍
09/30/2012 +5 days 🔍
10/03/2012 +3 days 🔍
09/04/2013 +336 days 🔍
04/14/2021 +2779 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: ubuntu.com
Researcher: Jay Fenlason , Doug Ledford
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2012-3430 (🔍)
OVAL: 🔍

X-Force: 77241
SecurityTracker: 1027562 - Linux Kernel Bug in rds_recvmsg() Lets Local Users Obtain Portions of Kernel Memory
Vulnerability Center: 36290 - Linux Kernel \x27rds_recvmsg()\x27 Function Local Information Disclosure via a Crafted RDS Socket, Low
SecurityFocus: 54702 - Linux Kernel 'rds_recvmsg()' Function Local Information Disclosure Vulnerability
Secunia: 45671 - Ubuntu update for kernel, Less Critical
OSVDB: 85606

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 09/24/2012 15:40
Updated: 04/14/2021 13:02
Changes: 09/24/2012 15:40 (79), 04/17/2017 11:35 (13), 04/14/2021 13:02 (3)
Complete: 🔍

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