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."
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | openttd | 1.2.1-2 | — |
| Debian 13 | openttd | 1.2.1-2 | — |
| Debian 12 | openttd | 1.2.1-2 | — |
| Debian 6.0 | openttd | 1.0.4-6 | DSA-2524-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | openttd | 1.6.1-1.1 | openSUSE-SU-2024:10563-1 |
Advisories 2
- DSA-2524-1 openttd - several Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10563-1 openttd-1.6.1-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
References
- 50042 third-party-advisory
- http://security.openttd.org/en/CVE-2012-3436
- [oss-security] 20120728 Re: CVE request for OpenTTD mailing-list
- openSUSE-SU-2012:1063 vendor-advisory
- 54720 vdb-entry
- [oss-security] 20120731 Re: CVE request for OpenTTD mailing-list
- openttd-water-dos(77266) vdb-entry
- http://vcs.openttd.org/svn/changeset/24449
- http://bugs.openttd.org/task/5254
- [oss-security] 20120727 CVE request for OpenTTD mailing-list
- http://vcs.openttd.org/svn/changeset/24439