OpenTTD water denial of service

openttd-water-dos (77266) The risk level is classified as MediumMedium Risk


OpenTTD is vulnerable to a denial of service, caused by an error when handling a request to clear a water tile. If a water tile containing a ship is raised, an attacker could exploit this vulnerability to cause the server to crash.


Base Score: 4.3
  Access Vector: Network
  Access Complexity: Medium
  Authentication: None
  Confidentiality Impact: None
  Integrity Impact: None
  Availability Impact: Partial
Temporal Score: 3.2
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed


Denial of Service


Refer to OpenTTD Web site for patch, upgrade or suggested workaround information. See References.


  • OpenTTD Web site: CVE-2012-3436 (vulnerable 0.6.0 - fixed 1.2.2).
  • BID-54720: OpenTTD 'Water Clearing' Feature Denial Of Service Vulnerability
  • 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 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.
  • DSA-2524: openttd -- several vulnerabilities
  • OSVDB ID: 84314: OpenTTD Water Tile Clearing Request Parsing Remote DoS
  • SA50042: OpenTTD Water Clearing Denial Of Service Vulnerability

Platforms Affected:

  • OpenTTD OpenTTD 0.6.0
  • OpenTTD OpenTTD 0.6.0 Rc1
  • OpenTTD OpenTTD 0.6.0 Beta5
  • OpenTTD OpenTTD 0.6.0 Beta4
  • OpenTTD OpenTTD 0.6.0 Beta3
  • OpenTTD OpenTTD 0.6.0 Beta2
  • OpenTTD OpenTTD 0.6.0 Beta1
  • OpenTTD OpenTTD 0.6.1 Rc1
  • OpenTTD OpenTTD 0.6.1 Rc2
  • OpenTTD OpenTTD 0.6.1
  • OpenTTD OpenTTD 0.6.2 rc1
  • OpenTTD OpenTTD 0.6.2 rc2
  • OpenTTD OpenTTD 0.7.4
  • OpenTTD OpenTTD 1.0
  • OpenTTD OpenTTD 1.0.1
  • OpenTTD OpenTTD 1.0.2
  • OpenTTD OpenTTD 1.0.3
  • OpenTTD OpenTTD 1.0.4
  • OpenTTD OpenTTD 1.1.4


Jul 30, 2012

The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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