This indicates an attack attempt against a denial-of-service vulnerability in Squid.
The vulnerability is caused by an error when the vulnerable software handles a specially crafted HTTP response. It allows a remote attacker to create a denial-of-service condition on the target server.
Squid versions 3.0 through 3.0.STABLE16
Squid versions 3.1 through 18.104.22.168
Denial of service
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