CVE-2021-31440
Assigner: zdi
Published: 2021-05-21T14:30:14
State: PUBLISHED
affected: product: Kernel
vendor: Linux
versions: status: affected
version: 5.11.15
credits: value: Manfred Paul
descriptions: value: 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.
metrics: cvssV3_0: attackComplexity: LOW
attackVector: LOCAL
availabilityImpact: HIGH
baseScore: 8.8
baseSeverity: HIGH
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: LOW
scope: CHANGED
userInteraction: NONE
vectorString: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
version: 3.0
problemTypes: descriptions: cweId: CWE-682
description: CWE-682: Incorrect Calculation
type: CWE