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"From 2007 to 2009 vulnerabilities in a typical end-user PC almost doubled from about 220 to 420."

Non-Microsoft software to blame for increase in vulnerabilities affecting typical Windows end-users, read more:

http://secunia.com/gfx/pdf/Secunia_Half_Year_Report_2010.pdf


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TITLE:
OpenTTD "NetworkSyncCommandQueue()" Endless Loop Denial of Service

SECUNIA ADVISORY ID:
SA40630

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/40630/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=40630

RELEASE DATE:
2010-07-23

DISCUSS ADVISORY:
http://secunia.com/advisories/40630/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/40630/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
 * Secunia Analysis
 * Systems Affected
 * Approve Distribution
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 * Secunia CVSS Score
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https://ca.secunia.com/?page=viewadvisory&vuln_id=40630

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
A vulnerability has been reported in OpenTTD, which can be exploited
by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to the "NetworkSyncCommandQueue()"
function in src/network/network_command.cpp not properly resetting
the "next" pointer, which can be exploited to trigger an endless loop
and exhaust CPU resources when joining a server.

The vulnerability is reported in versions 1.0.1 and 1.0.2. Other
versions may also be affected.

SOLUTION:
Reportedly, this will be fixed in the upcoming version 1.0.3.

Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

PROVIDED AND/OR DISCOVERED BY:
Reported in an OpenTTD bug by Dolly.

ORIGINAL ADVISORY:
http://security.openttd.org/en/CVE-2010-2534

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

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About:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

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