Linux Kernel 3.1 kernel/kmod.c __request_module input validation

CVSS Meta Temp Score
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6.2$0-$5k0.00

A vulnerability classified as critical was found in Linux Kernel 3.1 (Operating System). This vulnerability affects the function __request_module of the file kernel/kmod.c. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect availability. CVE summarizes:

The __request_module function in kernel/kmod.c in the Linux kernel before 3.4 does not set a certain killable attribute, which allows local users to cause a denial of service (memory consumption) via a crafted application.

The weakness was released 02/17/2013 (Website). The advisory is available at kernel.org. This vulnerability was named CVE-2012-4398 since 08/21/2012. The exploitation appears to be easy. Local access is required to approach this attack. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 70467 (Scientific Linux Security Update : Red Hat Enterprise Linux 5 kernel update on SL5.x i386/x86_64), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Scientific Linux Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 350511 (Amazon Linux Security Advisory for kernel: ALAS-2013-233).

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 vulnerability database at Tenable (70467).

Productinfo

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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: 6.2

VulDB Base Score: 6.2
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Input validation
CWE: CWE-20
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: 70467
Nessus Name: Scientific Linux Security Update : Red Hat Enterprise Linux 5 kernel update on SL5.x i386/x86_64
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 881593
OpenVAS Name: CentOS Update for kernel CESA-2013:0223 centos6
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/21/2012 🔍
08/31/2012 +10 days 🔍
02/17/2013 +170 days 🔍
02/17/2013 +0 days 🔍
02/19/2013 +2 days 🔍
10/01/2013 +224 days 🔍
10/17/2013 +16 days 🔍
03/24/2015 +523 days 🔍
12/29/2021 +2472 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: RHSA-2013:0223
Status: Not defined
Confirmation: 🔍

CVE: CVE-2012-4398 (🔍)
OVAL: 🔍

Vulnerability Center: 38466 - Linux Kernel <3.4 Local Denial of Service due to a Certain Unset Killable Attribute, Medium
SecurityFocus: 55361
Secunia: 55077 - Red Hat update for kernel, Not Critical

Entryinfo

Created: 03/24/2015 12:22
Updated: 12/29/2021 12:15
Changes: 03/24/2015 12:22 (69), 04/24/2017 15:08 (5), 12/29/2021 12:08 (2), 12/29/2021 12:15 (1)
Complete: 🔍
Cache ID: 3:CAA:103

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