Linux Kernel up to 5.12.10 Shadow Page paging_tmpl.h permission

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 5.12.10 and classified as critical. Affected is an unknown function of the file arch/x86/kvm/mmu/paging_tmpl.h of the component Shadow Page Handler. The manipulation results in permission. This vulnerability is identified as CVE-2021-38198. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.12.10 (Operating System). It has been classified as critical. Affected is an unknown code of the file arch/x86/kvm/mmu/paging_tmpl.h of the component Shadow Page Handler. The manipulation with an unknown input leads to a permission vulnerability. CWE is classifying the issue as CWE-275. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was released 08/09/2021 as b1bd5cba3306691c771d558e94baa73e8b0b96b7. The advisory is available at github.com. This vulnerability is traded as CVE-2021-38198. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1222 by the MITRE ATT&CK project.

Upgrading to version 5.12.11 eliminates this vulnerability. The upgrade is hosted for download at cdn.kernel.org. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Permission
CWE: CWE-275 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 5.12.11
Patch: github.com

Timelineinfo

08/08/2021 🔍
08/09/2021 +1 days 🔍
08/09/2021 +0 days 🔍
08/14/2021 +5 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: b1bd5cba3306691c771d558e94baa73e8b0b96b7
Status: Confirmed

CVE: CVE-2021-38198 (🔍)
GCVE (CVE): GCVE-0-2021-38198
GCVE (VulDB): GCVE-100-180366

Entryinfo

Created: 08/09/2021 07:05
Updated: 08/14/2021 09:55
Changes: 08/09/2021 07:05 (44), 08/14/2021 09:55 (2)
Complete: 🔍
Cache ID: 216::103

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