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Vulnerability of Squid: three vulnerabilities

Synthesis of the vulnerability 

An attacker can use several vulnerabilities of Squid.
Vulnerable products: Debian, Fedora, openSUSE Leap, RHEL, Squid, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this weakness: 3/4.
Number of vulnerabilities in this bulletin: 3.
Creation date: 09/05/2016.
Références of this bulletin: CERTFR-2016-AVI-157, CVE-2016-4553, CVE-2016-4554, CVE-2016-4555, CVE-2016-4556, DLA-478-1, DLA-556-1, DLA-558-1, DSA-3625-1, FEDORA-2016-95edf19d8a, FEDORA-2016-b3b9407940, openSUSE-SU-2016:2081-1, RHSA-2016:1138-01, RHSA-2016:1139-01, RHSA-2016:1140-01, SQUID-2016:7, SQUID-2016:8, SQUID-2016:9, SUSE-SU-2016:1996-1, SUSE-SU-2016:2089-1, USN-2995-1, VIGILANCE-VUL-19548.

Description of the vulnerability 

Several vulnerabilities were announced in Squid.

An script in the web browser of a client can poison the cache, in order to deceive other clients. [severity:3/4; CVE-2016-4553, SQUID-2016:7]

A special web client can poison the cache, in order to deceive other clients. [severity:2/4; CVE-2016-4554, SQUID-2016:8]

An attacker can trigger a fatal error in the processing of ESI responses, in order to trigger a denial of service. [severity:2/4; CVE-2016-4555, CVE-2016-4556, SQUID-2016:9]
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This cybersecurity note impacts software or systems such as Debian, Fedora, openSUSE Leap, RHEL, Squid, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

Our Vigil@nce team determined that the severity of this computer weakness announce is important.

The trust level is of type confirmed by the editor, with an origin of internet server.

This bulletin is about 3 vulnerabilities.

An attacker with a expert ability can exploit this cybersecurity vulnerability.

Solutions for this threat 

Squid: version 3.5.19.
The version 3.5.19 is fixed:
  http://www.squid-cache.org/

Debian 7: new squid3 packages.
New packages are available:
  Debian 7: squid3 3.1.20-2.2+deb7u6

Debian 7: new squid packages.
New packages are available:
  Debian 7: squid 2.7.STABLE9-4.1+deb7u2

Debian 8: new squid3 packages.
New packages are available:
  Debian 8: squid3 3.4.8-6+deb8u3

Fedora: new squid packages.
New packages are available:
  Fedora 23: squid 3.5.10-4.fc23
  Fedora 24: squid 3.5.19-2.fc24

openSUSE Leap 42.1: new squid packages.
New packages are available:
  openSUSE Leap 42.1: squid 3.3.14-6.1

RHEL: new squid packages.
New packages are available:
  RHEL 6: squid 3.1.23-16.el6_8.4, squid34 3.4.14-9.el6_8.3
  RHEL 7: squid 3.3.8-26.el7_2.3

SUSE LE 11 SP4: new squid3 packages.
New packages are available:
  SUSE LE 11 SP4: squid3 3.1.23-8.16.27.1
  SUSE LE 11 SP4: squid3 3.1.23-8.16.30.1
  SUSE LE 11 SP4: squid3 3.1.23-8.16.27.1

Ubuntu: new squid3 packages (10/06/2016).
New packages are available:
  Ubuntu 16.04 LTS: squid3 3.5.12-1ubuntu7.2
  Ubuntu 15.10: squid3 3.3.8-1ubuntu16.3
  Ubuntu 14.04 LTS: squid3 3.3.8-1ubuntu6.8
  Ubuntu 12.04 LTS: squid3 3.1.19-1ubuntu3.12.04.7
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