CVE-2023-39191

2023-10-0419:15:10

CWE-20

[email protected]

web.nvd.nist.gov

cve-2023-39191

linux kernel

input validation

ebpf subsystem

privilege escalation

arbitrary code execution

CVSS3

8.2

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

AI Score

8.2

Confidence

High

EPSS

0.001

Percentile

17.5%

JSON

An improper input validation flaw was found in the eBPF subsystem in the Linux kernel. The issue occurs due to a lack of proper validation of dynamic pointers within user-supplied eBPF programs prior to executing them. This may allow an attacker with CAP_BPF privileges to escalate privileges and execute arbitrary code in the context of the kernel.

Affected configurations

Nvd

Node

linuxlinux_kernelRange5.19–6.3

Node

fedoraprojectfedoraMatch38

Node

redhatenterprise_linuxMatch9.0

VendorProductVersionCPE
linuxlinux_kernel*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
fedoraprojectfedora38cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
redhatenterprise_linux9.0cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
linux	linux_kernel	*	cpe:2.3:o:linux:linux_kernel::::::::
fedoraproject	fedora	38	cpe:2.3:o:fedoraproject:fedora:38:::::::*
redhat	enterprise_linux	9.0	cpe:2.3:o:redhat:enterprise_linux:9.0:::::::*