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VID 22739
Severity 30
Port 8080,3128
Protocol TCP
Class Webproxy
Detailed Description According to its banner, the version of Squid running on the remote host is 4.x prior to 4.0.10. It is, therefore, vulnerable to a denial of service attack when processing ESI responses. This problem allows a remote server delivering certain ESI response syntax to trigger a denial of service for all clients accessing the Squid service.

* Note: This check solely relied on the version number of the remote Squid Web Proxy Cache server to assess this vulnerability, so this might be a false positive.

* References:
http://www.squid-cache.org/Advisories/
http://www.squid-cache.org/Advisories/SQUID-2016_9.txt

* Platforms Affected:
National Science Foundation, Squid Web Proxy Cache versions prior to 4.0.10
Linux Any version
Unix Any version
Recommendation Upgrade to the latest version of Squid (4.0.10 or later), available from the Squid Web Proxy Cache Web site at http://www.squid-cache.org/Versions/v4/
Related URL CVE-2016-4555 (CVE)
Related URL (SecurityFocus)
Related URL (ISS)