Linux Kernel Timer Tree lib/timerqueue.c timerqueue_add initialization

CVSS Meta Temp Score
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CTI Interest Score
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3.0$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Linux Kernel. This issue affects the function timerqueue_add in the library lib/timerqueue.c of the component Timer Tree. Such manipulation leads to initialization. This vulnerability is traded as CVE-2021-20317. The attack may be launched remotely. There is no exploit available. It is best practice to apply a patch to resolve this issue.

Detailsinfo

A vulnerability was found in Linux Kernel (Operating System) (affected version not known). It has been rated as problematic. Affected by this issue is the function timerqueue_add in the library lib/timerqueue.c of the component Timer Tree. The manipulation with an unknown input leads to a initialization vulnerability. Using CWE to declare the problem leads to CWE-665. The product does not initialize or incorrectly initializes a resource, which might leave the resource in an unexpected state when it is accessed or used. Impacted is availability.

The weakness was shared 09/27/2021. The advisory is available at bugzilla.redhat.com. This vulnerability is handled as CVE-2021-20317 since 12/17/2020. Technical details are known, but there is no available exploit.

Applying the patch 511885d7061eda3eb1faf3f57dcc936ff75863f1 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org.

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Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.1
VulDB Meta Temp Score: 3.0

VulDB Base Score: 3.1
VulDB Temp Score: 3.0
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: Initialization
CWE: CWE-665
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
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: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 511885d7061eda3eb1faf3f57dcc936ff75863f1

Timelineinfo

12/17/2020 🔍
09/27/2021 +283 days 🔍
09/27/2021 +0 days 🔍
10/02/2021 +5 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: bugzilla.redhat.com
Status: Confirmed

CVE: CVE-2021-20317 (🔍)
GCVE (CVE): GCVE-0-2021-20317
GCVE (VulDB): GCVE-100-183374

Entryinfo

Created: 09/27/2021 15:02
Updated: 10/02/2021 14:48
Changes: 09/27/2021 15:02 (43), 10/02/2021 14:48 (1)
Complete: 🔍
Cache ID: 216::103

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