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Debian Security Advisory DSA 3745-1 (squid3 - security update)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
Saulius Lapinskas from Lithuanian State Social Insurance Fund Board discovered that Squid3, a fully featured web proxy cache, does not properly process responses to If-None-Modified HTTP conditional requests, leading to client-specific Cookie data being leaked to other clients. A remote attacker can take advantage of this flaw to discover private and sensitive information about another clients browsing session.
Affected Software
Affected Software
squid3 on Debian Linux
Detection Method
Detection Method
This check tests the installed software version using the apt package manager.
Solution
Solution
For the stable distribution (jessie), this problem has been fixed in version 3.4.8-6+deb8u4. For the unstable distribution (sid), this problem has been fixed in version 3.5.23-1. We recommend that you upgrade your squid3 packages.