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Vulnerability of Squid cache: Cross Site Scripting via TLS Errors

Synthesis of the vulnerability 

An attacker can trigger a Cross Site Scripting via TLS Errors of Squid cache, in order to run JavaScript code in the context of the web site.
Impacted products: Debian, Fedora, openSUSE Leap, Solaris, Squid, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this bulletin: 2/4.
Number of vulnerabilities in this bulletin: 2.
Creation date: 29/10/2018.
Références of this threat: bulletinoct2018, CERTFR-2018-AVI-518, CVE-2018-19131, CVE-2018-19132, DLA-1596-1, DLA-2278-1, DLA-2278-2, DLA-2278-3, FEDORA-2018-714298460e, openSUSE-SU-2018:3818-1, openSUSE-SU-2018:3825-1, SQUID-2018:4, SUSE-SU-2018:3771-1, SUSE-SU-2018:3771-2, SUSE-SU-2018:3786-1, SUSE-SU-2018:3790-1, USN-4059-1, USN-4059-2, VIGILANCE-VUL-27633.

Description of the vulnerability 

The Squid cache product offers a web service.

However, it does not filter received data via TLS Errors before inserting them in generated HTML documents.

An attacker can therefore trigger a Cross Site Scripting via TLS Errors of Squid cache, in order to run JavaScript code in the context of the web site.
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This computer vulnerability bulletin impacts software or systems such as Debian, Fedora, openSUSE Leap, Solaris, Squid, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

Our Vigil@nce team determined that the severity of this vulnerability bulletin is medium.

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

This bulletin is about 2 vulnerabilities.

An attacker with a expert ability can exploit this threat note.

Solutions for this threat 

Squid cache: version 4.4.
The version 4.4 is fixed:
  http://www.squid-cache.org/

Squid cache: patch for TLS Errors.
A patch is available:
  Squid 3.5: http://www.squid-cache.org/Versions/v3/3.5/changesets/squid-3.5-f1657a9decc820f748fa3aff68168d3145258031.patch
  Squid 4: http://www.squid-cache.org/Versions/v4/changesets/squid-4-828245b90206602014ce057c3db39fb80fcc4b08.patch

Debian 8: new squid3 packages.
New packages are available:
  Debian 8: squid3 3.4.8-6+deb8u6

Debian 9: new squid3 packages.
New packages are available:
  Debian 9: squid3 3.5.23-5+deb9u4

Fedora 29: new squid packages.
New packages are available:
  Fedora 29: squid 4.4-1.fc29

openSUSE Leap: new squid packages.
New packages are available:
  openSUSE Leap 42.3: squid 3.5.21-18.1
  openSUSE Leap 15.0: squid 4.4-lp150.4.3.2

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

SUSE LE 11 SP4: new squid3 packages.
New packages are available:
  SUSE LE 11 SP4: squid3 3.1.23-8.16.37.9.1

SUSE LE 12 SP3: new squid packages.
New packages are available:
  SUSE LE 12 SP3: squid 3.5.21-26.12.1

SUSE LE 12 SP4: new squid packages.
New packages are available:
  SUSE LE 12 SP4: squid 3.5.21-26.12.1

SUSE LE 15: new squid packages.
New packages are available:
  SUSE LE 15 RTM: squid 4.4-5.3.2

Ubuntu: new squid packages.
New packages are available:
  Ubuntu 19.04: squid 4.4-1ubuntu2.1
  Ubuntu 18.04 LTS: squid3 3.5.27-1ubuntu1.2
  Ubuntu 16.04 LTS: squid3 3.5.12-1ubuntu7.7
  Ubuntu 12.04 ESM: squid3 3.1.19-1ubuntu3.12.04.9

Wind River Linux: solution (28/11/2018).
The solution is indicated in information sources.
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