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CVE-2021-23134

nvd nist
Published: May 12, 2021Modified: Jul 30, 2026

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7.8
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitability: 1.8 / Impact: 5.9
Source: psirt@paloaltonetworks.com (Secondary)

Description

Use After Free vulnerability in nfc sockets in the Linux Kernel before 5.12.4 allows local attackers to elevate their privileges. In typical configurations, the issue can only be triggered by a privileged local user with the CAP_NET_RAW capability.

Affected (18)

Show all products
Netapp: Cloud Backup, H300s Firmware, H500s Firmware, H700s Firmware, H410s Firmware, H410c Firmware, Solidfire Baseboard Management Controller Firmware · Linux: Linux Kernel · Fedoraproject: Fedora · Debian: Debian Linux
Netapp
7 products
Cloud Backup
H300s Firmware
H500s Firmware
H700s Firmware
H410s Firmware
H410c Firmware
Solidfire Baseboard Management Controller Firmware
Linux
1 product
Linux Kernel
Fedoraproject
1 product
Fedora
Debian
1 product
Debian Linux
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Cloud Backup
All versions
Configuration B
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
H300s Firmware
All versions
Running on/withPlatform Versions
Netapp
H300s
All versions
Configuration C
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
H500s Firmware
All versions
Running on/withPlatform Versions
Netapp
H500s
All versions
Configuration D
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
H700s Firmware
All versions
Running on/withPlatform Versions
Netapp
H700s
All versions
Configuration E
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
H410s Firmware
All versions
Running on/withPlatform Versions
Netapp
H410s
All versions
Configuration F
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
H410c Firmware
All versions
Running on/withPlatform Versions
Netapp
H410c
All versions
Configuration G
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Solidfire Baseboard Management Controller Firmware
All versions
Running on/withPlatform Versions
Netapp
Solidfire Baseboard Management Controller
All versions
Configuration H
8 vulnerable
Vulnerable SoftwareAffected Versions
Linux
Linux Kernel
Before 4.4.269
Linux Kernel
From 4.10 to 4.14.233
Linux Kernel
From 4.15 to 4.19.191
Linux Kernel
From 4.20 to 5.4.119
Linux Kernel
From 4.5 to 4.9.269
Linux Kernel
From 5.11 to 5.11.21
Linux Kernel
From 5.12 to 5.12.4
Linux Kernel
From 5.5 to 5.10.37
Configuration I
2 vulnerable
Vulnerable SoftwareAffected Versions
Fedoraproject
Fedora
Version 33
Fedora
Version 34
Configuration J
1 vulnerable
Vulnerable SoftwareAffected Versions
Debian Linux
Version 9.0

Related CWEs

CWE-416
Use After Free
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (14)

Source: psirt@paloaltonetworks.com
Mailing ListPatchVendor Advisory
Source: psirt@paloaltonetworks.com
Mailing ListThird Party Advisory
Source: psirt@paloaltonetworks.com
Mailing ListThird Party Advisory
Source: psirt@paloaltonetworks.com
Third Party Advisory
Source: psirt@paloaltonetworks.com
Third Party Advisory
Source: psirt@paloaltonetworks.com
Third Party Advisory
Source: psirt@paloaltonetworks.com
Mailing ListPatchThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListPatchVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListPatchThird Party Advisory

Timeline

No history available yet.