Debian Security Advisory

DLA-558-1 squid -- LTS security update

Date Reported:
25 Jul 2016
Affected Packages:
Security database references:
In Mitre's CVE dictionary: CVE-2016-4554.
More information:

A security issue has been discovered in the Squid chaching proxy, on its 2.7.STABLE9 version branch.

  • CVE-2016-4554

    Jianjun Chen found that Squid was vulnerable to a header smuggling attack that could lead to cache poisoning and to bypass of same-origin security policy in Squid and some client browsers.

For Debian 7 Wheezy, this issue has been fixed in version 2.7.STABLE9-4.1+deb7u2.

We recommend that you upgrade your squid packages.

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: