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Zdaemon Denial of Service and Buffer Overflow Vulnerabilities
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Secunia Advisory:
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SA19496
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Release Date:
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2006-04-03
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Last Update:
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2006-04-06
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Popularity:
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4,684 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: | ZDaemon 1.x
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| CVE reference: | CVE-2006-1592
CVE-2006-1593
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Description:
Luigi Auriemma has reported two vulnerabilities in Zdaemon, which can be exploited by malicious people to cause a DoS (Denial of Service) and potentially compromise a vulnerable system.
1) A boundary error in the checking of client maps (.wad files) when a client connects can be exploited to cause a buffer overflow by passing an overly long string (more than 256 bytes) as the filename of a map.
Successful exploitation requires knowledge of the password if the server is password protected.
2) Out-of-bounds memory access errors in the "ZD_MissingPlayer()", "ZD_UseItem()", and "ZD_ValidClient()" functions can be exploited to crash the server by supplying an invalid value.
Successful exploitation requires access to a match on a vulnerable server.
The vulnerabilities have been reported in version 1.08.01. Other versions may also be affected.
Solution:
Grant only trusted clients access to matches by password protecting vulnerable game servers.
Provided and/or discovered by:
Luigi Auriemma
Changelog:
2006-04-06: Added CVE references.
Original Advisory:
http://aluigi.altervista.org/adv/zdaebof-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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