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TITLE:
Ventrilo Server Denial of Service Vulnerability

SECUNIA ADVISORY ID:
SA31466

VERIFY ADVISORY:
http://secunia.com/advisories/31466/

CRITICAL:
Moderately critical

IMPACT:
DoS

WHERE:
>From remote

SOFTWARE:
Ventrilo Server 3.x
http://secunia.com/product/19567/
Ventrilo Server 2.x
http://secunia.com/product/5609/

DESCRIPTION:
Luigi Auriemma and Andre Malm have reported a vulnerability in
Ventrilo Server, which can be exploited by malicious people to cause
a DoS (Denial of Service).

The vulnerability is caused due to a NULL-pointer dereference error
in the processing of packets received on TCP port 3784. This can be
exploited to cause a crash via a "type 0" packet having an incorrect
version, followed by a packet containing arbitrary data.

The vulnerability is reported in version 3.0.2. Other versions may
also be affected.

SOLUTION:
Restrict network access to trusted users.

PROVIDED AND/OR DISCOVERED BY:
Luigi Auriemma and Andre Malm

ORIGINAL ADVISORY:
http://aluigi.altervista.org/adv/ventrilobotomy-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.

Subscribe:
http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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