var-200505-0836
Vulnerability from variot

Gibraltar Firewall 2.2 and earlier, when using the ClamAV update to 0.81 for Squid, uses a defunct ClamAV method to scan memory for viruses, which does not return an error code and prevents viruses from being detected. Gibraltar is susceptible to an antivirus scan evasion vulnerability. This issue presents itself because of an oversight in the design of the firewall product, due to a change of features of the ClamAV antivirus scanning engine. This vulnerability allows malicious content to pass undetected by an affected firewall acting as an HTTP proxy, leading to a false sense of security

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