Linux Kernel 3.16.0/3.16.1/3.16.2 Array Garbage null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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5.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel 3.16.0/3.16.1/3.16.2. It has been classified as problematic. Affected by this issue is some unknown functionality of the component Array Garbage Handler. Performing a manipulation results in null pointer dereference. This vulnerability is known as CVE-2014-3631. Furthermore, an exploit is available. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability was found in Linux Kernel 3.16.0/3.16.1/3.16.2 (Operating System). It has been classified as problematic. This affects an unknown code block of the component Array Garbage Handler. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability.

The issue has been introduced in 08/03/2014. The weakness was published 09/15/2014 by David Howells as confirmed git commit (GIT Repository). It is possible to read the advisory at git.kernel.org. This vulnerability is uniquely identified as CVE-2014-3631 since 05/14/2014. The exploitability is told to be easy. Attacking locally is a requirement. No form of authentication is needed for exploitation. Technical details are unknown but a public exploit is available.

A public exploit has been developed by Emeric Nasi in ANSI C and been published 7 months after the advisory. The exploit is shared for download at securityfocus.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 43 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 77794 (Fedora 21 : kernel-3.16.2-301.fc21 (2014-10693)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 195640 (Ubuntu Security Notification for Linux Vulnerabilities (USN-2379-1)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org.

The vulnerability is also documented in the databases at X-Force (96186), Exploit-DB (36268), Tenable (77794), SecurityFocus (BID 70095†) and OSVDB (111298†). Further details are available at bugzilla.redhat.com. Similar entries are available at VDB-67535, VDB-67543, VDB-67544 and VDB-67545. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 6.2
VulDB Meta Temp Score: 5.6

VulDB Base Score: 6.2
VulDB Temp Score: 5.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

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

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Nessus ID: 77794
Nessus Name: Fedora 21 : kernel-3.16.2-301.fc21 (2014-10693)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 867487
OpenVAS Name: Fedora Update for kernel FEDORA-2014-17283
OpenVAS File: 🔍
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Qualys ID: 🔍
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Exploit-DB: 🔍

Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍
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Patch: 95389b08d93d5c06ec63ab49bd732b0069b7c35e

Timelineinfo

05/14/2014 🔍
08/03/2014 +81 days 🔍
09/15/2014 +43 days 🔍
09/15/2014 +0 days 🔍
09/23/2014 +8 days 🔍
09/24/2014 +1 days 🔍
09/25/2014 +1 days 🔍
09/28/2014 +3 days 🔍
09/29/2014 +1 days 🔍
03/04/2015 +156 days 🔍
03/04/2015 +0 days 🔍
11/22/2024 +3551 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: USN-2378-1
Researcher: David Howells
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-3631 (🔍)
GCVE (CVE): GCVE-0-2014-3631
GCVE (VulDB): GCVE-100-67695

OVAL: 🔍

X-Force: 96186 - Linux Kernel array garbage denial of service, Medium Risk
SecurityFocus: 70095 - Linux Kernel CVE-2014-3631 Local Denial of Service Vulnerability
OSVDB: 111298
Vulnerability Center: 46278 - Linux Kernel before 3.16.3 Local DoS or Unspecified Vulnerability in assoc_array_gc Function, Medium

scip Labs: https://www.scip.ch/en/?labs.20161013
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Entryinfo

Created: 09/25/2014 13:20
Updated: 11/22/2024 02:23
Changes: 09/25/2014 13:20 (84), 06/07/2017 11:08 (9), 02/21/2022 02:42 (5), 02/21/2022 02:49 (1), 11/22/2024 02:23 (19)
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Cache ID: 216:9E9:103

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