Linux Kernel up to 5.11.8 Thread fs/io_uring.c deadlock

CVSS Meta Temp Score
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CTI Interest Score
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4.5$0-$5k0.00

Summaryinfo

A vulnerability has been found in Linux Kernel up to 5.11.8 and classified as problematic. Impacted is an unknown function of the file fs/io_uring.c of the component Thread Handler. This manipulation causes deadlock. This vulnerability is tracked as CVE-2021-28951. No exploit exists. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 5.11.8 (Operating System) and classified as problematic. Affected by this vulnerability is an unknown part of the file fs/io_uring.c of the component Thread Handler. The manipulation with an unknown input leads to a deadlock vulnerability. The CWE definition for the vulnerability is CWE-833. The product contains multiple threads or executable segments that are waiting for each other to release a necessary lock, resulting in deadlock. As an impact it is known to affect availability.

The weakness was disclosed 03/21/2021. The advisory is shared at git.kernel.org. This vulnerability is known as CVE-2021-28951. Technical details are known, but no exploit is available.

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

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Productinfo

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Vendor

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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: 4.5
VulDB Meta Temp Score: 4.5

VulDB Base Score: 3.5
VulDB Temp Score: 3.5
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: Deadlock
CWE: CWE-833 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
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: Patch
Status: 🔍

0-Day Time: 🔍

Patch: git.kernel.org

Timelineinfo

03/20/2021 🔍
03/21/2021 +1 days 🔍
03/21/2021 +0 days 🔍
04/03/2021 +13 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Not defined

CVE: CVE-2021-28951 (🔍)
GCVE (CVE): GCVE-0-2021-28951
GCVE (VulDB): GCVE-100-171517

Entryinfo

Created: 03/21/2021 07:52
Updated: 04/03/2021 13:07
Changes: 03/21/2021 07:52 (41), 04/03/2021 13:02 (2), 04/03/2021 13:07 (18)
Complete: 🔍
Cache ID: 216::103

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