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CVE-2021-34866

nvd nist
Published: Jan 25, 2022Modified: Nov 21, 2024

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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: NVD

Description

This vulnerability allows local attackers to escalate privileges on affected installations of Linux Kernel 5.14-rc3. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handling of eBPF programs. The issue results from the lack of proper validation of user-supplied eBPF programs, which can result in a type confusion condition. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the kernel. Was ZDI-CAN-14689.

Affected (10)

Linux
1 product
Linux Kernel
Netapp
8 products
H410c Firmware
H300s Firmware
H500s Firmware
H700s Firmware
H300e Firmware
H500e Firmware
H700e Firmware
H410s Firmware
Configuration A
2 vulnerable
Vulnerable SoftwareAffected Versions
Linux
Linux Kernel
From 5.11 to 5.13.14
Linux Kernel
From 5.8 to 5.10.62
Configuration B
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
H410c Firmware
All versions
Running on/withPlatform Versions
Netapp
H410c
All versions
Configuration C
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
H300s Firmware
All versions
Running on/withPlatform Versions
Netapp
H300s
All versions
Configuration D
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
H500s Firmware
All versions
Running on/withPlatform Versions
Netapp
H500s
All versions
Configuration E
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
H700s Firmware
All versions
Running on/withPlatform Versions
Netapp
H700s
All versions
Configuration F
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
H300e Firmware
All versions
Running on/withPlatform Versions
Netapp
H300e
All versions
Configuration G
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
H500e Firmware
All versions
Running on/withPlatform Versions
Netapp
H500e
All versions
Configuration H
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
H700e Firmware
All versions
Running on/withPlatform Versions
Netapp
H700e
All versions
Configuration I
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
H410s Firmware
All versions
Running on/withPlatform Versions
Netapp
H410s
All versions

Related CWEs

CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.

References (4)

Source: zdi-disclosures@trendmicro.com
Third Party Advisory
Source: zdi-disclosures@trendmicro.com
Third Party AdvisoryVDB Entry
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party AdvisoryVDB Entry

Timeline

No history available yet.