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Genecys Buffer Overflow and Denial of Service
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Secunia Advisory:
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SA20099
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Release Date:
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2006-05-15
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Last Update:
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2006-05-26
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Popularity:
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5,120 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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Unpatched
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| Software: | Genecys 0.x
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| CVE reference: | CVE-2006-2554
CVE-2006-2555
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Description:
Luigi Auriemma has reported two vulnerabilities in Genecys, which can be exploited by malicious people to cause a DoS (Denial of Service) and potentially to compromise a vulnerable system.
1) A boundary error exists in the "tell_player_surr_changes()" function due to the unsafe use of the "sprintf()" and "strcat() functions". This can potentially be exploited to cause a stack-based buffer overflow and may allow arbitrary code execution.
2) A NULL pointer dereferencing error in the "parse_command()" function can be exploited to crash the server via a specially-crafted command sent from a client that does not contain the ":" character.
The vulnerabilities have been reported in version 0.2 and in the current CVS version. Other versions may also be affected.
Solution:
Host games on trusted networks only.
Provided and/or discovered by:
Luigi Auriemma
Changelog:
2006-05-26: Added CVE references.
Original Advisory:
http://aluigi.altervista.org/adv/genecysbof-adv.txt
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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