CVE-2022-2652

2022-08-0410:15:07

CWE-134

[email protected]

web.nvd.nist.gov

cve-2022-2652

information security

kernel stack

memory leak

dos

format strings

v4l2loopback

kernel module

nvd

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

5.6

Confidence

High

EPSS

0.001

Percentile

17.7%

JSON

Depending on the way the format strings in the card label are crafted it’s possible to leak kernel stack memory. There is also the possibility for DoS due to the v4l2loopback kernel module crashing when providing the card label on request (reproduce e.g. with many %s modifiers in a row).

Affected configurations

NVD

Node

v4l2loopback_projectv4l2loopbackRange<0.12.6

CNA Affected

[
  {
    "product": "umlaeute/v4l2loopback",
    "vendor": "umlaeute",
    "versions": [
      {
        "lessThan": "0.12.6",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]