CVE-2021-47501

Aliases:UBUNTU-CVE-2021-47501DEBIAN-CVE-2021-47501
Advisory lineage Upstream: 0 Downstream: 24
Analyzed
Published: 24 May 2024, 15:01
Last modified:11 May 2026, 13:55

Vulnerability Summary

Overall Risk (default)
low
22/100
CVSS Score
5.5 MEDIUM
v3.1 (nvd)
EPSS Score
0.24% LOW
0% probability +0.23%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

24 May 2024, 15:01
Published
Vulnerability first disclosed
11 May 2026, 13:55
Last Modified
Vulnerability information updated

Description

In the Linux kernel, the following vulnerability has been resolved: i40e: Fix NULL pointer dereference in i40e_dbg_dump_desc When trying to dump VFs VSI RX/TX descriptors using debugfs there was a crash due to NULL pointer dereference in i40e_dbg_dump_desc. Added a check to i40e_dbg_dump_desc that checks if VSI type is correct for dumping RX/TX descriptors.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Trends

Current EPSS score: 0.24%• Percentile: 16%

Techniques & Countermeasures

  • CWE-476•NULL Pointer Dereference

    The product dereferences a pointer that it expects to be valid but is NULL.

Affected Systems

  • debian•linux

    < 5.10.92-1 | < 5.15.15-1 | < 5.15.15-1 | < 5.15.15-1

  • ubuntu•linux

    all | < 4.4.0-262.296 | < 4.15.0-232.244 | < 5.4.0-202.222

  • ubuntu•linux-allwinner-5.19

    all

  • ubuntu•linux-aws

    < 4.4.0-1139.145 | < 4.4.0-1177.192 | < 4.15.0-1176.189 | < 5.4.0-1136.146

  • ubuntu•linux-aws-5.0

    all

  • ubuntu•linux-aws-5.11

    all

  • ubuntu•linux-aws-5.13

    all

  • ubuntu•linux-aws-5.19

    all

  • ubuntu•linux-aws-5.3

    all

  • ubuntu•linux-aws-5.4

    < 5.4.0-1136.146~18.04.1

  • ubuntu•linux-aws-5.8

    all

  • ubuntu•linux-aws-6.2

    all

  • ubuntu•linux-aws-fips

    < 4.15.0-2114.120 | all | < 5.4.0-1136.146+fips1

  • ubuntu•linux-aws-hwe

    < 4.15.0-1176.189~16.04.1

  • ubuntu•linux-azure

    < 4.15.0-1184.199~14.04.1 | < 4.15.0-1184.199~16.04.1 | all | < 5.4.0-1142.149

  • ubuntu•linux-azure-4.15

    < 4.15.0-1184.199

  • ubuntu•linux-azure-5.11

    all

  • ubuntu•linux-azure-5.13

    all

  • ubuntu•linux-azure-5.19

    all

  • ubuntu•linux-azure-5.3

    all

  • ubuntu•linux-azure-5.4

    < 5.4.0-1142.149~18.04.1

  • ubuntu•linux-azure-5.8

    all

  • ubuntu•linux-azure-6.2

    all

  • ubuntu•linux-azure-edge

    all

  • ubuntu•linux-azure-fde

    all

  • ubuntu•linux-azure-fde-5.19

    all

  • ubuntu•linux-azure-fde-6.2

    all

  • ubuntu•linux-azure-fips

    < 4.15.0-2093.99 | all | < 5.4.0-1142.149+fips1

  • ubuntu•linux-bluefield

    all | < 5.4.0-1096.103

  • ubuntu•linux-fips

    < 4.4.0-1108.115 | all | < 4.15.0-1130.141 | < 5.4.0-1110.120

  • ubuntu•linux-gcp

    < 4.15.0-1169.186~16.04.1 | all | < 5.4.0-1140.149

  • ubuntu•linux-gcp-4.15

    < 4.15.0-1169.186

  • ubuntu•linux-gcp-5.11

    all

  • ubuntu•linux-gcp-5.13

    all

  • ubuntu•linux-gcp-5.19

    all

  • ubuntu•linux-gcp-5.3

    all

  • ubuntu•linux-gcp-5.4

    < 5.4.0-1140.149~18.04.1

  • ubuntu•linux-gcp-5.8

    all

  • ubuntu•linux-gcp-6.2

    all

  • ubuntu•linux-gcp-fips

    < 4.15.0-2077.83 | all | < 5.4.0-1140.149+fips1

  • ubuntu•linux-gke

    all

  • ubuntu•linux-gke-4.15

    all

  • ubuntu•linux-gke-5.15

    all

  • ubuntu•linux-gke-5.4

    all

  • ubuntu•linux-gkeop

    all

  • ubuntu•linux-gkeop-5.4

    all

  • ubuntu•linux-hwe

    < 4.15.0-232.244~16.04.1 | all

  • ubuntu•linux-hwe-5.11

    all

  • ubuntu•linux-hwe-5.13

    all

  • ubuntu•linux-hwe-5.19

    all

Showing first 50 affected entries in server-rendered view.

References (18)