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    Layered Defense Advisory 13 September 2006
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1) Affected Software 
Symantec AntiVirus Corporate Edition 10.0
Symantec AntiVirus Corporate Edition  9.0
Symantec AntiVirus Corporate Edition  8.1 ==================================================
2) Severity 
Rating: Medium risk
Impact: Execution of arbitrary code, rights escalation and at a minimum, denial of service.
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3) Description of Vulnerability 
A format string vulnerability was discovered within Symantec AntiVirus Corporate Edition. The vulnerability is due to improper processing of format strings within Tamper Protection and Virus Alert Notification message fields. A local user could replace the Tamper Protection and Virus Alert Notification messages with a specially crafted format string which could allow access to the process stack. If successfully exploited, this could allow the user to execute code of the attacker’s choice with elevated privileges, on the local system.
Other effected software identified by vendor:
Symantec Client Security 3.0
Symantec Client Security 2.x
Symantec Client Security 1.x

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4) Solution
 
Solutions to fix vulnerability are addressed within Symantec Advisory 
http://www.symantec.com/avcenter/security/Content/2006.09.13.html
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5) Time Table 
01/08/2006 – Reported Vulnerability to Vendor. 
09/13/2006 – Vendor Public disclosure. 
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6) Credits 
Discovered by Deral Heiland, www.LayeredDefense.com ==================================================
7) References 
CVE Reference: 
CVE-2006-3454 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3454
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9) About Layered Defense 
Layered Defense, Is a group of security professionals that work together on ethical Research, Testing and Training within the information security arena.
http://www.layereddefense.com
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