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TITLE:
McAfee Network Agent Invalid String Position Denial of Service

SECUNIA ADVISORY ID:
SA22371

VERIFY ADVISORY:
http://secunia.com/advisories/22371/

CRITICAL:
Less critical

IMPACT:
DoS

WHERE:
>From local network

SOFTWARE:
McAfee Personal Firewall Plus 7.x/2006
http://secunia.com/product/267/
McAfee Internet Security Suite 2006
http://secunia.com/product/11210/
McAfee VirusScan 10.x/2006
http://secunia.com/product/9052/

DESCRIPTION:
JAAScois has discovered a vulnerability in various McAfee products,
which can be exploited by malicious people to cause a DoS (Denial of
Service).

The vulnerability is caused due to an error in McAfee Network Agent
(McNASvc.exe) when processing received network messages. This can be
exploited to crash the service by sending a specially crafted message
with an invalid value in the string position field.

The vulnerability is confirmed in McAfee Internet Security Suite 2006
including McAfee Network Agent version 1.0.178.0. Other versions and
products may also be affected.

SOLUTION:
Restrict access to the service.

PROVIDED AND/OR DISCOVERED BY:
JAAScois

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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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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.
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