Linux Kernel up to 5.12.12 PMU Driver Support core-book3s.c denial of service

CVSS Meta Temp Score
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CTI Interest Score
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4.7$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Linux Kernel up to 5.12.12. This issue affects some unknown processing of the file arch/powerpc/perf/core-book3s.c of the component PMU Driver Support. The manipulation leads to denial of service. This vulnerability is documented as CVE-2021-38200. The attack can be initiated remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Linux Kernel up to 5.12.12 (Operating System). This issue affects some unknown functionality of the file arch/powerpc/perf/core-book3s.c of the component PMU Driver Support. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability.

The weakness was released 08/09/2021 as 60b7ed54a41b550d50caf7f2418db4a7e75b5bdc. It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2021-38200. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

Upgrading to version 5.12.13 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

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.9
VulDB Meta Temp Score: 4.8

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

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 5.12.13
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: 60b7ed54a41b550d50caf7f2418db4a7e75b5bdc
Status: Confirmed

CVE: CVE-2021-38200 (🔍)
GCVE (CVE): GCVE-0-2021-38200
GCVE (VulDB): GCVE-100-180371

Entryinfo

Created: 08/09/2021 07:09
Updated: 08/14/2021 10:43
Changes: 08/09/2021 07:09 (44), 08/14/2021 10:36 (2), 08/14/2021 10:43 (18)
Complete: 🔍
Cache ID: 216::103

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