VDB-172024 · CVE-2021-29648 · Nessus 216030

Linux Kernel up to 5.11.10 BPF Subsystem kernel/bpf/syscall.c map_create resolved_ids/resolved_sizes denial of service

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5.4	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 5.11.10. It has been declared as problematic. The affected element is the function map_create of the file kernel/bpf/syscall.c of the component BPF Subsystem. Executing a manipulation of the argument resolved_ids/resolved_sizes can lead to denial of service. The identification of this vulnerability is CVE-2021-29648. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.11.10 (Operating System). It has been declared as problematic. This vulnerability affects the function map_create of the file kernel/bpf/syscall.c of the component BPF Subsystem. The manipulation of the argument resolved_ids/resolved_sizes with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability.

The weakness was shared 03/31/2021. The advisory is shared for download at git.kernel.org. This vulnerability was named CVE-2021-29648. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 216030 (EulerOS 2.0 SP12 : kernel (EulerOS-SA-2025-1176)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.11.11 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 git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at Tenable (216030). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Operating System

Vendor

Linux

Name

Kernel

Version

License

open-source

Website

Vendor: https://www.kernel.org/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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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: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 216030
Nessus Name: EulerOS 2.0 SP12 : kernel (EulerOS-SA-2025-1176)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 5.11.11
Patch: git.kernel.org

Timelineinfo

03/30/2021 🔍
03/31/2021 +1 days 🔍
03/31/2021 +0 days 🔍
02/11/2025 +1413 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2021-29648 (🔍)
GCVE (CVE): GCVE-0-2021-29648
GCVE (VulDB): GCVE-100-172024

Entryinfo

Created: 03/31/2021 08:21
Updated: 02/11/2025 10:27
Changes: 03/31/2021 08:21 (45), 04/07/2021 10:29 (5), 04/07/2021 10:32 (18), 02/11/2025 10:27 (16)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.