CVE-2022-2652

Public Exploit
Use of Externally-Controlled Format String in umlaeute/v4l2loopback

Description

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).

Category

6.0
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 3.0 •
EPSS 0.02%
Third-Party Advisory github.com Third-Party Advisory huntr.dev
Affected: umlaeute umlaeute/v4l2loopback
Published at:
Updated at:

References

Link Tags
https://huntr.dev/bounties/1b055da5-7a9e-4409-99d7-030280d242d5 issue tracking patch exploit third party advisory
https://github.com/umlaeute/v4l2loopback/commit/e4cd225557486c420f6a34411f98c575effd43dd third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2022-2652?
CVE-2022-2652 has been scored as a medium severity vulnerability.
How to fix CVE-2022-2652?
To fix CVE-2022-2652, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-2652 being actively exploited in the wild?
It is possible that CVE-2022-2652 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-2652?
CVE-2022-2652 affects umlaeute umlaeute/v4l2loopback.
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