Linux Kernel up to 3.18 rc1 paravirt_ops_setup access control

CVSS Meta Temp Score
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CTI Interest Score
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3.4$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Linux Kernel up to 3.18 rc1. Affected is the function paravirt_ops_setup. The manipulation leads to access control. This vulnerability is listed as CVE-2014-8134. There is no available exploit. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Linux Kernel up to 3.18 rc1 (Operating System). This issue affects the function paravirt_ops_setup. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is integrity.

The weakness was presented 12/05/2014 by Andy Lutomirski (Website). The advisory is shared at spinics.net. The identification of this vulnerability is CVE-2014-8134 since 10/10/2014. 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 are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 82756 (openSUSE Security Update : Linux Kernel (openSUSE-2015-302)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 256020 (CentOS Security Update for kernel (CESA-2016:0855)).

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 (99809), Tenable (82756), SecurityFocus (BID 71650†), Secunia (SA62336†) and Vulnerability Center (SBV-47578†). See VDB-68439, VDB-68459, VDB-76938 and VDB-79331 for similar entries. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.7
VulDB Meta Temp Score: 3.4

VulDB Base Score: 4.0
VulDB Temp Score: 3.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 3.3
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 82756
Nessus Name: openSUSE Security Update : Linux Kernel (openSUSE-2015-302)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 867487
OpenVAS Name: Fedora Update for kernel FEDORA-2014-17283
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: git.kernel.org

Timelineinfo

10/10/2014 🔍
12/05/2014 +56 days 🔍
12/12/2014 +7 days 🔍
12/12/2014 +0 days 🔍
12/12/2014 +0 days 🔍
12/14/2014 +2 days 🔍
01/13/2015 +30 days 🔍
04/14/2015 +91 days 🔍
03/02/2022 +2514 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: RHSA-2016:0855
Researcher: Andy Lutomirski
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-8134 (🔍)
GCVE (CVE): GCVE-0-2014-8134
GCVE (VulDB): GCVE-100-68573

OVAL: 🔍

X-Force: 99809 - Linux Kernel paravirt_ops_setup security bypass, Low Risk
SecurityFocus: 71650 - Linux Kernel 'kernel/kvm.c' Local Information Disclosure Vulnerability
Secunia: 62336
Vulnerability Center: 47578 - Linux Kernel 3.18 and Earlier Local Information Disclosure due to Improper \x27paravirt_enabled\x27 Settings, Low

See also: 🔍

Entryinfo

Created: 01/13/2015 14:33
Updated: 03/02/2022 08:19
Changes: 01/13/2015 14:33 (75), 06/15/2017 11:23 (5), 03/02/2022 08:14 (4), 03/02/2022 08:18 (11), 03/02/2022 08:19 (1)
Complete: 🔍
Cache ID: 216:92C:103

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