Linux Kernel 3.1 kernel/sys.c override_release config

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

A vulnerability was found in Linux Kernel 3.1 (Operating System). It has been rated as problematic. This issue affects the function override_release of the file kernel/sys.c. The manipulation with an unknown input leads to a config vulnerability. Using CWE to declare the problem leads to CWE-16. Impacted is confidentiality. The summary by CVE is:

The override_release function in kernel/sys.c in the Linux kernel before 3.4.16 allows local users to obtain sensitive information from kernel stack memory via a uname system call in conjunction with a UNAME26 personality.

The weakness was presented 12/21/2012 by Brad Spengler (Website). The advisory is shared at github.com. The identification of this vulnerability is CVE-2012-0957 since 02/01/2012. The exploitation is known to be easy. An attack has to be approached locally. No form of authentication is needed for a successful exploitation. Technical details as well as a public exploit are known. MITRE ATT&CK project uses the attack technique T1592.004 for this issue.

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 69632 (Amazon Linux AMI : kernel (ALAS-2012-142)), 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 350605 (Amazon Linux Security Advisory for kernel: ALAS-2012-142).

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 (79122) and Tenable (69632). See 5384, 7055, 63761 and 63759 for similar entries.

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CPE 2.3info

CPE 2.2info

CVSSv4info

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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
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VulDB Reliability: 🔍

CVSSv2info

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Exploitinginfo

Class: Config
CWE: CWE-16
ATT&CK: T1592.004

Local: Yes
Remote: No

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

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Nessus ID: 69632
Nessus Name: Amazon Linux AMI : kernel (ALAS-2012-142)
Nessus File: 🔍
Nessus Risk: 🔍
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Nessus Port: 🔍

OpenVAS ID: 864823
OpenVAS Name: Fedora Update for kernel FEDORA-2012-16669
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: no mitigation known
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0-Day Time: 🔍

Patch: 2702b1526c7278c4d65d78de209a465d4de2885e
McAfee IPS: 🔍
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Timelineinfo

02/01/2012 🔍
10/09/2012 +251 days 🔍
10/09/2012 +0 days 🔍
11/06/2012 +28 days 🔍
12/21/2012 +45 days 🔍
12/21/2012 +0 days 🔍
09/04/2013 +257 days 🔍
03/24/2015 +566 days 🔍
12/21/2021 +2464 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: RHSA-2012:1426
Researcher: Brad Spengler
Status: Not defined
Confirmation: 🔍

CVE: CVE-2012-0957 (🔍)
OVAL: 🔍

X-Force: 79122
Vulnerability Center: 37004 - Linux Kernel 3.2.1, 3.2.2, 3.2.9, and 3.2.13 Local Information Disclosure Vulnerability, Medium
SecurityFocus: 55855 - Linux Kernel 'uname()' System Call Local Information Disclosure Vulnerability
Secunia: 51409

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

Entryinfo

Created: 03/24/2015 12:22
Updated: 12/21/2021 07:26
Changes: 03/24/2015 12:22 (70), 04/20/2017 14:16 (12), 12/21/2021 07:20 (5), 12/21/2021 07:26 (2)
Complete: 🔍

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