SmartDefense Security Advisory

Microsoft SMB Endless Loop Denial of Service Vulnerability

Industry Reference:CVE-2009-3676.

A denial of service vulnerability has been reported in the way that Microsoft Server Message Block (SMB) protocol software handles specially crafted SMB packets. The SMB Protocol is a network file sharing protocol that is implemented in Microsoft Windows. A remote attacker may exploit this vulnerability to cause the affected system to stop responding until manually restarted. This protection will detect and block malformed SMB packets.

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VPN-1 NGX R65 & VSX NGX R65: A new protection is now available.
CPAI-2009-296.

November 16, 2009

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