CVE-2023-3161

2023-06-1220:15:12

CWE-1335

CWE-682

[email protected]

web.nvd.nist.gov

flaw

fbcon

linux kernel

denial of service

cve-2023-3161

nvd

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

6 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

9.0%

JSON

A flaw was found in the Framebuffer Console (fbcon) in the Linux Kernel. When providing font->width and font->height greater than 32 to fbcon_set_font, since there are no checks in place, a shift-out-of-bounds occurs leading to undefined behavior and possible denial of service.

Affected configurations

Vulners

NVD

Node

linuxlinux_kernelRange≤6.2

VendorProductVersionCPE
linuxlinux_kernel*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
linux	linux_kernel	*	cpe:2.3:o:linux:linux_kernel::::::::

CNA Affected

[
  {
    "vendor": "n/a",
    "product": "Linux Kernel (fbcon)",
    "versions": [
      {
        "version": "Fixed in kernel 6.2-rc7",
        "status": "affected"
      }
    ]
  }
]