Linux Kernel up to 5.14.15 octeontx2-af rvu_debugfs.c null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Linux Kernel up to 5.14.15. The impacted element is an unknown function of the file rvu_debugfs.c of the component octeontx2-af. Performing a manipulation results in null pointer dereference. This vulnerability is cataloged as CVE-2021-47484. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Linux Kernel up to 5.14.15. This affects an unknown code of the file rvu_debugfs.c of the component octeontx2-af. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: octeontx2-af: Fix possible null pointer dereference. This patch fixes possible null pointer dereference in files "rvu_debugfs.c" and "rvu_nix.c"

It is possible to read the advisory at git.kernel.org. This vulnerability is uniquely identified as CVE-2021-47484 since 05/22/2024. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 5.14.16 eliminates this vulnerability. Applying the patch f1e3cd1cc802/c2d4c543f74c 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.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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: 5.6
VulDB Meta Temp Score: 5.5

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

CNA Base Score: 5.5
CNA Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / 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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 5.14.16
Patch: f1e3cd1cc802/c2d4c543f74c

Timelineinfo

05/22/2024 🔍
05/22/2024 +0 days 🔍
05/22/2024 +0 days 🔍
11/08/2024 +170 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2021-47484 (🔍)
GCVE (CVE): GCVE-0-2021-47484
GCVE (VulDB): GCVE-100-265899

Entryinfo

Created: 05/22/2024 11:42
Updated: 11/08/2024 03:58
Changes: 05/22/2024 11:42 (58), 11/08/2024 03:58 (12)
Complete: 🔍
Cache ID: 216::103

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