Linux Kernel on VMX Intel resource management

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Linux Kernel on VMX Intel. The affected element is an unknown function. The manipulation results in resource management. This vulnerability is reported as CVE-2014-3690. No exploit exists. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Linux Kernel on VMX Intel (Operating System) (unknown version). Affected is an unknown code block. The manipulation with an unknown input leads to a resource management vulnerability. CWE is classifying the issue as CWE-399. This is going to have an impact on availability.

The weakness was disclosed 10/21/2014 by Andy Lutomirski as confirmed mailinglist post (oss-sec). The advisory is shared for download at seclists.org. This vulnerability is traded as CVE-2014-3690 since 05/14/2014. The exploitability is told to be easy. The attack needs to be approached locally. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The advisory points out:

KVM has a bug that allows malicious host user code that can open the /dev/kvm device on a VMX (Intel) machine to DoS the system. (In my proof of concept, the DoS is a rather spectacular failure of the whole system, although I haven't checked whether the kernel panics. A more refined exploit *might* be able to kill targetted user processes, but it would be tricky and is subject to possibly unavoidable races that are likely to take down the whole system.)

The vulnerability scanner Nessus provides a plugin with the ID 79435 (Ubuntu 14.04 LTS : linux vulnerabilities (USN-2420-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 115150 (Red Hat Update for kernel (RHSA-2015:0782)).

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 (97715), Tenable (79435), SecurityFocus (BID 70691†), Secunia (SA60174†) and Vulnerability Center (SBV-47906†). Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.4

VulDB Base Score: 6.2
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 79435
Nessus Name: Ubuntu 14.04 LTS : linux vulnerabilities (USN-2420-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 703060
OpenVAS Name: Debian Security Advisory DSA 3060-1 (linux - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: d974baa398f34393db76be45f7d4d04fbdbb4a0a

Timelineinfo

05/14/2014 🔍
10/21/2014 +160 days 🔍
10/21/2014 +0 days 🔍
10/21/2014 +0 days 🔍
10/24/2014 +3 days 🔍
11/10/2014 +17 days 🔍
11/25/2014 +15 days 🔍
11/25/2014 +0 days 🔍
01/04/2015 +40 days 🔍
02/23/2022 +2607 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: USN-2420-1
Researcher: Andy Lutomirski
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-3690 (🔍)
GCVE (CVE): GCVE-0-2014-3690
GCVE (VulDB): GCVE-100-68052

OVAL: 🔍

X-Force: 97715 - Linux Kernel KVM denial of service, Medium Risk
SecurityFocus: 70691 - Linux Kernel KVM CVE-2014-3690 Local Denial of Service Vulnerability
Secunia: 60174 - Ubuntu update for kernel, Less Critical
Vulnerability Center: 47906 - Linux Kernel <=3.17.2 'arch/x86/kvm/vmx.c\x27 Local DoS Vulnerability via \x27/dev/kvm\x27 Access, Medium

Entryinfo

Created: 10/24/2014 10:43
Updated: 02/23/2022 15:56
Changes: 10/24/2014 10:43 (79), 06/17/2017 07:30 (3), 02/23/2022 15:44 (5), 02/23/2022 15:50 (11), 02/23/2022 15:56 (2)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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