FreeBSD VuXML: Documenting security issues in FreeBSD and the FreeBSD Ports Collection

OpenTTD -- Denial of service (server) via slow read attack

Affected packages
0.3.5 <= openttd < 1.1.5


VuXML ID 1ac858b0-3fae-11e1-a127-0013d3ccd9df
Discovery 2012-01-06
Entry 2012-01-16

The OpenTTD Team reports:

Using a slow read type attack it is possible to prevent anyone from joining a server with virtually no resources. Once downloading the map no other downloads of the map can start, so downloading really slowly will prevent others from joining. This can be further aggravated by the pause-on-join setting in which case the game is paused and the players cannot continue the game during such an attack. This attack requires that the user is not banned and passes the authorization to the server, although for many servers there is no server password and thus authorization is easy.


CVE Name CVE-2012-0049