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Vulnerability of Squid: buffer overflow via Basic Authentication HttpHeader-getAuth

Synthesis of the vulnerability 

An attacker can trigger a buffer overflow via Basic Authentication HttpHeader::getAuth of Squid, in order to trigger a denial of service, and possibly to run code.
Vulnerable software: Debian, openSUSE Leap, Solaris, RHEL, Squid, SLES, Ubuntu.
Severity of this announce: 3/4.
Creation date: 12/07/2019.
Références of this computer vulnerability: CERTFR-2019-AVI-332, CVE-2019-12527, DSA-4507-1, openSUSE-SU-2019:2540-1, openSUSE-SU-2019:2541-1, RHSA-2019:2593-01, SQUID-2019:5, SUSE-SU-2019:2975-1, USN-4065-1, VIGILANCE-VUL-29761.

Description of the vulnerability 

An attacker can trigger a buffer overflow via Basic Authentication HttpHeader::getAuth of Squid, in order to trigger a denial of service, and possibly to run code.
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This vulnerability note impacts software or systems such as Debian, openSUSE Leap, Solaris, RHEL, Squid, SLES, Ubuntu.

Our Vigil@nce team determined that the severity of this cybersecurity vulnerability is important.

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

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

Solutions for this threat 

Squid cache: version 4.8.
The version 4.8 is fixed:
  http://www.squid-cache.org/Versions/v4/

Squid: patch for Basic Authentication HttpHeader-getAuth.
A patch is indicated in information sources.

Debian 10: new squid packages.
New packages are available:
  Debian 10: squid 4.6-1+deb10u1

openSUSE Leap 15: new squid packages (22/11/2019).
New packages are available:
  openSUSE Leap 15.0: squid 4.9-lp150.13.1
  openSUSE Leap 15.1: squid 4.9-lp151.2.7.1

Oracle Solaris: patch for third party software of October 2019 v2.
A patch is available:
  https://support.oracle.com/rs?type=doc&id=1448883.1

RHEL 8: new squid-4 module.
The following module is updated:
  RHEL 8 Module: squid:4

SUSE LE 15: new squid packages (15/11/2019).
New packages are available:
  SUSE LE 15 RTM: squid 4.9-5.11.1
  SUSE LE 15 SP1: squid 4.9-5.11.1

Ubuntu: new squid packages.
New packages are available:
  Ubuntu 19.04: squid 4.4-1ubuntu2.2
  Ubuntu 18.04 LTS: squid3 3.5.27-1ubuntu1.3
  Ubuntu 16.04 LTS: squid3 3.5.12-1ubuntu7.8
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