CVE-2009-3700: Buffer overflow in sgLog.c in squidGuard 1.3 and 1.4 allows remote attackers to cause a denial of service (...

Security readout for executives and security teams

CVE-2009-3700 affects squidGuard 1.3 and 1.4. A specially long URL can make the filtering component hang or stop blocking correctly. For an executive, the main risk is proxy filtering disruption, not confirmed data theft or code execution based on the supplied sources. Exposure is most likely where squidGuard 1.3 or 1.4 is deployed with Squid for URL filtering and processes user-controlled URLs. The supplied affected-product metadata is incomplete, so confirm package versions from asset inventory rather than relying on CPE data. Prioritize remediation for proxy gateways that enforce web access policy. Business urgency is moderate: the likely impact is filtering outage or bypass, but the supplied sources do not support confirmed active exploitation or broader compromise. Mitigation focus: Identify any squidGuard 1.3 or 1.4 deployments.; Review the squidGuard 2009 patch readme and vendor advisories.; Apply vendor or distribution security updates where available..

Prepared

Jun 28, 2026, 18:15 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.