oss-sec mailing list archives

Re: CVE request for OpenTTD


From: frosch <frosch () openttd org>
Date: Tue, 31 Jul 2012 18:09:45 +0200

On 07/27/2012 03:42 PM, frosch wrote:
Hello,

we, the OpenTTD developers, have identified a security 
vulnerability in OpenTTD (an open source game with
multiplayer). Would you be so kind as to allocate a CVE id for
this issue?

The issue concerns a denial of service vulnerabilty which
enables an attacker to force the server into an invalid game
state. The server will abort upon detecting this state. This
attack can be performed using an unmodified client via normal
game interaction. The attack requires authorization, but most
servers do not implement authorization. The first vulnerable
version is 0.6.0, the upcoming 1.2.2 release will have the
issue fixed.

Once a CVE id is allocated, the issue and fix will be
documented at http://security.openttd.org/CVE-2012-xxxx

Thanks in advance, Christoph 'frosch' Elsenhans

(Please CC me, I'm not subscribed)

Sorry can you please provide links to an advisory, code commit,
or something so we have a reference?

trunk commit: http://vcs.openttd.org/svn/changeset/24439/ Bug
report: http://bugs.openttd.org/task/5254

Later on http://security.openttd.org/CVE-2012-xxxx will supply
patches for all vulnerable versions, and also link to the bug
tracker and related commits.

Regards

Perfect, thanks. Please use CVE-2012-3436 for this issue.

P.S. with respect to "In some cases ships could be covered with land."
couldn't the ship sail into a cave or over hanging cliff? ;)

The detailed description is now public on
http://security.openttd.org/CVE-2012-3436

Note that both the problem description and patches have been updated
to cover a second case of this bug, so if you downloaded the patches
before 2012-07-31 16:00 UTC, please download them again.




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