Potential H.323 Denial of Service

Title: NetScreen Security Alert 52020 Date: 25 November 2002 Description: Potential H.323 Denial of Service Impact: Complete Denial of Service Affected Products: All firewall/VPN appliances and systems Affected Software Releases: ScreenOS 2.8, 3.0, 3.1, 4.0 Summary: A vulnerability has been...

State-based firewalls fail to effectively manage session table resource exhaustion

Overview There is a vulnerability in several state-based firewall products that allows arbitrary remote attackers to conduct denial of service attacks against vulnerable firewalls. Description Many firewall products use state tables to determine whether a given packet belongs to an existing sessi...