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Vulnerability of Squid cache: spoofing via HTTP Request Cache Poisoning

Synthesis of the vulnerability 

An attacker can create spoofed data via HTTP Request Cache Poisoning of Squid cache, in order to deceive the victim.
Vulnerable software: Fedora, openSUSE Leap, Squid, SUSE Linux Enterprise Desktop, SLES.
Severity of this announce: 2/4.
Creation date: 29/06/2020.
Références of this computer vulnerability: CERTFR-2020-AVI-393, CVE-2020-15049, FEDORA-2020-cbebc5617e, openSUSE-SU-2020:1346-1, openSUSE-SU-2020:1369-1, SQUID-2020:7, SUSE-SU-2020:14460-1, SUSE-SU-2020:2442-1, SUSE-SU-2020:2443-1, VIGILANCE-VUL-32635.

Description of the vulnerability 

An attacker can create spoofed data via HTTP Request Cache Poisoning of Squid cache, in order to deceive the victim.
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This computer vulnerability note impacts software or systems such as Fedora, openSUSE Leap, Squid, SUSE Linux Enterprise Desktop, SLES.

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

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

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

Solutions for this threat 

Squid cache: version 4.12.
The version 4.12 is fixed:
  https://wwww.squid-cache.org/

Squid cache: patch for HTTP Request Cache Poisoning.
A patch is available:
  Squid 4: http://www.squid-cache.org/Versions/v4/changesets/squid-4-ea12a34d338b962707d5078d6d1fc7c6eb119a22.patch
  Squid 5: http://www.squid-cache.org/Versions/v5/changesets/squid-5-485c9a7bb1bba88754e07ad0094647ea57a6eb8d.patch

Fedora 31: new squid packages.
New packages are available:
  Fedora 31: squid 4.12-1.fc31

openSUSE Leap 15.1: new squid packages.
New packages are available:
  openSUSE Leap 15.1: squid 4.13-lp151.2.24.1

openSUSE Leap 15.2: new squid packages.
New packages are available:
  openSUSE Leap 15.2: squid 4.13-lp152.2.6.1

SUSE LE 11 SP3-4: new squid3 packages.
New packages are available:
  SUSE LE 11 SP3: squid3 3.1.23-8.16.37.12.1
  SUSE LE 11 SP4: squid3 3.1.23-8.16.37.12.1

SUSE LE 12 SP5: new squid packages.
New packages are available:
  SUSE LE 12 SP5: squid 4.13-4.15.1

SUSE LE 15: new squid packages.
New packages are available:
  SUSE LE 15 RTM: squid 4.13-5.23.1
  SUSE LE 15 SP1: squid 4.13-5.23.1
  SUSE LE 15 SP2: squid 4.13-5.23.1
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