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OpenTTD Format String and Buffer Overflow Vulnerabilities
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Secunia Advisory:
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SA16696
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Release Date:
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2005-09-06
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Last Update:
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2006-02-01
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Popularity:
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5,816 views
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Critical:
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Highly critical
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Impact:
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DoS
System access
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | OpenTTD 0.x
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Subscribe:
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Instant alerts on relevant vulnerabilities 
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| | CVE reference: | CVE-2005-2763
CVE-2005-2764
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Description:
Some vulnerabilities have been reported in OpenTTD, which can be exploited by malicious people to cause a DoS (Denial of Service) or potentially compromise a vulnerable system.
1) Some format string error in the handling of network text messages in network_server.c, network.c, console_cmds.c, and network_client.c can be exploited to crash the OpenTTD server or client and potentially to execute arbitrary code.
2) Some boundary errors due to the unsafe use of "vsprintf()" may be exploited to cause a DoS and potentially to execute arbitrary code.
Vulnerabilities #1 and #2 have been reported in version 0.4.0.1. Other versions may also be affected.
3) An input validation error exists in the "CmdPlantTree()" function in tree_cmd.c when handling the tree-planting command. This may be exploited to cause a buffer overflow.
Solution:
Update to version 0.4.5.
https://sourceforge.net/project/showf...group_id=103924&package_id=111717
Provided and/or discovered by:
1-2) Alexey Dobriyan
3) Reported by vendor
Changelog:
2005-09-28: Added CVE reference.
2006-02-01: Added vulnerability.
Original Advisory:
http://www.tt-forums.net/viewtopic.php?p=400836
http://svn.openttd.org/cgi-bin/trac.cgi/changeset/2899
http://svn.openttd.org/cgi-bin/trac.cgi/changeset/3446
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About this Secunia Advisory
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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10th Oct, 2008
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