The pop3 Proxy in Astaro Security Gateway (ASG) 7 does not perform virus scanning of attachments that exceed the maximum attachment size, and passes these attachments, which allows remote attackers to bypass this scanning via a large attachment.

Unspecified vulnerability in pfilter-reporter.pl in Astaro Security Gateway (ASG) 7 allows remote attackers to cause a denial of service (CPU consumption) via certain network traffic, as demonstrated by P2P and iTunes applications that download large amounts of data.

Multiple unspecified vulnerabilities in Astaro Security Gateway (ASG) before 7.005 allow remote attackers to cause a denial of service via (1) certain email, which stops the SMTP Proxy during scanning; (2) certain HTTP traffic, which stops or slows down the HTTP proxy during HTTP responses containing virus scanned web pages; and (3) a disconnection during a streaming session.