CVE-2021-20226

A use-after-free flaw was found in the io_uring in Linux kernel, where a local attacker with a user privilege could cause a denial of service problem on the system The issue results from the lack of validating the existence of an object prior to performing operations on the object by not incrementing the file reference counter while in use. The highest threat from this vulnerability is to data integrity, confidentiality and system availability.
References
Link Resource
https://bugzilla.redhat.com/show_bug.cgi?id=1873476 Issue Tracking Third Party Advisory
https://security.netapp.com/advisory/ntap-20210401-0001/ Third Party Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*

History

28 Jul 2023, 17:12

Type Values Removed Values Added
CPE cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

01 Jun 2022, 18:07

Type Values Removed Values Added
References (CONFIRM) https://security.netapp.com/advisory/ntap-20210401-0001/ - (CONFIRM) https://security.netapp.com/advisory/ntap-20210401-0001/ - Third Party Advisory
First Time Netapp
Netapp cloud Backup
CPE cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*

01 Apr 2021, 08:15

Type Values Removed Values Added
References
  • (CONFIRM) https://security.netapp.com/advisory/ntap-20210401-0001/ -

27 Feb 2021, 00:57

Type Values Removed Values Added
References (MISC) https://bugzilla.redhat.com/show_bug.cgi?id=1873476 - (MISC) https://bugzilla.redhat.com/show_bug.cgi?id=1873476 - Issue Tracking, Third Party Advisory
CPE cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown
v2 : 6.1
v3 : 7.8
CWE CWE-416

23 Feb 2021, 17:26

Type Values Removed Values Added
New CVE

Information

Published : 2021-02-23 17:15

Updated : 2023-12-10 13:41


NVD link : CVE-2021-20226

Mitre link : CVE-2021-20226

CVE.ORG link : CVE-2021-20226


JSON object : View

Products Affected

linux

  • linux_kernel

netapp

  • cloud_backup
CWE
CWE-416

Use After Free