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.
References
History

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cve-icon MITRE Information

Status: PUBLISHED

Assigner: zdi

Published: 2022-01-25T15:30:36

Updated: 2022-02-17T17:06:22

Reserved: 2021-06-17T00:00:00


Link: CVE-2021-34866

JSON object: View

cve-icon NVD Information

Status : Analyzed

Published: 2022-01-25T16:15:08.450

Modified: 2023-03-01T20:15:22.020


Link: CVE-2021-34866

JSON object: View

cve-icon Redhat Information

No data.

CWE