TITLE:
Cube Engine Buffer Overflow and Denial of Service

SECUNIA ADVISORY ID:
SA19110

VERIFY ADVISORY:
http://secunia.com/advisories/19110/

CRITICAL:
Highly critical

IMPACT:
DoS, System access

WHERE:
>From remote

SOFTWARE:
CUBE Engine
http://secunia.com/product/8587/

DESCRIPTION:
Luigi Auriemma has reported some vulnerabilities in Cube Engine,
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 within the "sgetstr()" function in both
the client and the server when copying received data to a fixed-sized
buffer. This can be exploited to cause a buffer overflow and may allow
arbitrary code execution.

2) A boundary error in the "sgetstr()" and "getint()" functions may
be exploited to cause the client or the server to read unallocated
memory, potentially causing a crash.

Note: A design error that causes game clients to exit whenever a
malicious user specifies a non-existing map file has also been
reported.

The vulnerabilities have been reported in versions 2005_08_29 and
prior.

SOLUTION:
Host network games only within trusted networks and do not connect to
non-trusted game servers.

PROVIDED AND/OR DISCOVERED BY:
Luigi Auriemma

ORIGINAL ADVISORY:
http://aluigi.altervista.org/adv/evilcube-adv.txt

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