NetSight
IP …
high7.0

CVE-2021-31440

This vulnerability allows local attackers to escalate privileges on affected installations of Linux Kernel 5.11.15.

Impact

This vulnerability allows local attackers to escalate privileges on affected installations of Linux Kernel 5.11.15. 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 prior to executing them. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the kernel. Was ZDI-CAN-13661.

Affected products

VendorProductAffected versions
LinuxLinux Kernel
from 5.7 before 5.10.37
from 5.11 before 5.11.21
from 5.12 before 5.12.4
NetappSolidfire Baseboard Management Controller Firmware
All versions
NetappCloud Backup
All versions
NetappH500s Firmware
All versions
NetappH700s Firmware
All versions
NetappH300e Firmware
All versions
NetappH500e Firmware
All versions
NetappH700e Firmware
All versions
NetappH410s Firmware
All versions
NetappH300s Firmware
All versions

Weakness classification

CWE-682

References