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TITLE:
Zilab Chat and Instant Messaging Server Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA29062

VERIFY ADVISORY:
http://secunia.com/advisories/29062/

CRITICAL:
Moderately critical

IMPACT:
DoS, System access

WHERE:
>From local network

SOFTWARE:
Zilab Chat and Instant Messaging (ZIM) Server 2.x
http://secunia.com/product/17748/

DESCRIPTION:
Luigi Auriemma has discovered some vulnerabilities in Zilab Chat and
Instant Messaging (ZIM) Server, which can be exploited by malicious
people to cause a DoS (Denial of Service) or compromise a vulnerable
system.

1) Boundary errors within the "Local ZIM Server" (zcs.exe) can be
exploited to cause stack-based or heap-based buffer overflows via
overly long, specially crafted packets sent to default port
7700/TCP.

Successful exploitation allows execution of arbitrary code.

2) A NULL-pointer dereference error within the "Local ZIM Server" can
be exploited to crash the service via a specially crafted packet sent
to default port 7700/TCP.

The vulnerabilities are confirmed in version 2.0 and reported in
version 2.1. Other versions may also be affected.

SOLUTION:
Use only in a trusted network environment.

PROVIDED AND/OR DISCOVERED BY:
Luigi Auriemma

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

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

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http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
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use those supplied by the vendor.

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