OpenTTD: Execution of arbitrary code

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200903-09 / openttd
Release Date	March 07, 2009
Latest Revision	March 07, 2009: 01
Impact	high
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
games-simulation/openttd	< 0.6.3	>= 0.6.3	All supported architectures

Related bugreports: #233929

Synopsis

Multiple buffer overflows in OpenTTD might allow for the execution of arbitrary code in the server.

2. Impact Information

Background

OpenTTD is a clone of Transport Tycoon Deluxe.

Description

Multiple buffer overflows have been reported in OpenTTD, when storing long for client names (CVE-2008-3547), in the TruncateString function in src/gfx.cpp (CVE-2008-3576) and in src/openttd.cpp when processing a large filename supplied to the "-g" parameter in the ttd_main function (CVE-2008-3577).

Impact

An authenticated attacker could exploit these vulnerabilities to execute arbitrary code with the privileges of the OpenTTD server.

3. Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All OpenTTD users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=games-simulation/openttd-0.6.3"

4. References

Updated March 07, 2009

Summary: This is a Gentoo Linux Security Advisory

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