CVE-2022-2652 HIGH

CVE-2022-2652: Use of Externally-Controlled Format String in umlaeute/v4l2loopback

Vendor Umlaeute
Product umlaeute/v4l2loopback
Weakness CWE-134
Published August 4, 2022
Last update August 3, 2024
View on NVD All CVEs

CVSS base score

7.3/10
Attack vector Local
Attack complexity Low
Privileges required High
User interaction None
Confidentiality High
Integrity Low

CVSS vector

CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:L

What the vulnerability does

01Description

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).

Key dates

02Disclosure timeline

August 4, 2022 CVE published
August 3, 2024 Record updated