#VU43410 NULL pointer dereference in OpenTTD - CVE-2012-3436

Vulnerability identifier: #VU43410

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2012-3436

CWE-ID: CWE-476

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
OpenTTD
Other software / Other software solutions

Vendor: openttd.com

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error. A remote attacker can trigger denial of service conditions via a certain sequence of steps related to "the water/coast aspect of tiles which also have railtracks on one half."

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

OpenTTD: 0.6.0 - 1.2.1

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External links
https://bugs.openttd.org/task/5254
https://lists.opensuse.org/opensuse-updates/2012-08/msg00043.html
https://secunia.com/advisories/50042
https://security.openttd.org/en/CVE-2012-3436
https://vcs.openttd.org/svn/changeset/24439
https://vcs.openttd.org/svn/changeset/24449
https://www.openwall.com/lists/oss-security/2012/07/27/5
https://www.openwall.com/lists/oss-security/2012/07/28/7
https://www.openwall.com/lists/oss-security/2012/07/31/5
https://www.securityfocus.com/bid/54720
https://exchange.xforce.ibmcloud.com/vulnerabilities/77266

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.