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Vulnerability of Squid cache: denial of service

Synthesis of the vulnerability 

An attacker can generate a fatal error of Squid cache, in order to trigger a denial of service.
Vulnerable products: Debian, Fedora, openSUSE Leap, Solaris, RHEL, Squid, Ubuntu.
Severity of this weakness: 1/4.
Number of vulnerabilities in this bulletin: 2.
Creation date: 22/01/2018.
Références of this bulletin: bulletinjul2018, CERTFR-2018-AVI-046, CVE-2018-1000024, CVE-2018-1000027, DLA-1266-1, DLA-1267-1, DSA-4122-1, FEDORA-2018-4fabf63492, openSUSE-SU-2018:0647-1, RHSA-2020:1068-01, SQUID-2018:1, SQUID-2018:2, USN-3557-1, VIGILANCE-VUL-25134.

Description of the vulnerability 

An attacker can generate a fatal error of Squid cache, in order to trigger a denial of service.
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This threat announce impacts software or systems such as Debian, Fedora, openSUSE Leap, Solaris, RHEL, Squid, Ubuntu.

Our Vigil@nce team determined that the severity of this cybersecurity alert is low.

The trust level is of type confirmed by the editor, with an origin of intranet client.

This bulletin is about 2 vulnerabilities.

An attacker with a expert ability can exploit this security alert.

Solutions for this threat 

Squid cache: version 3.5.28.
The version 3.5.28 is fixed:
  http://www.squid-cache.org/

Squid cache: patch.
A patch is available:
  http://www.squid-cache.org/Versions/v3/3.5/changesets/SQUID-2018_1.patch
  http://www.squid-cache.org/Versions/v3/3.5/changesets/SQUID-2018_2.patch

Debian: new squid packages.
New packages are available:
  Debian 7: squid3 3.1.20-2.2+deb7u8, squid 2.7.STABLE9-4.1+deb7u3
  Debian 8: squid3 3.4.8-6+deb8u5
  Debian 9: squid3 3.5.23-5+deb9u1

Fedora: new squid packages.
New packages are available:
  Fedora 27: squid 4.0.23-2.fc27

openSUSE Leap 42.3: new squid packages.
New packages are available:
  openSUSE Leap 42.3: squid 3.5.21-12.1

Oracle Solaris: patch for third party software of July 2018 v3.
A patch is available:
  https://support.oracle.com/rs?type=doc&id=1448883.1

RHEL 7: new squid packages.
New packages are available:
  RHEL 7.0-7.7: squid 3.5.20-15.el7

Ubuntu: new squid3 packages (06/02/2018).
New packages are available:
  Ubuntu 17.10: squid3 3.5.23-5ubuntu1.1
  Ubuntu 16.04 LTS: squid3 3.5.12-1ubuntu7.5
  Ubuntu 14.04 LTS: squid3 3.3.8-1ubuntu6.11
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