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Vulnerability of Squid cache: information disclosure via FTP Gateway

Synthesis of the vulnerability 

A local attacker can read a memory fragment via FTP Gateway of Squid cache, in order to obtain sensitive information.
Impacted products: Debian, Fedora, openSUSE Leap, Solaris, Squid, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this bulletin: 2/4.
Creation date: 03/02/2020.
Références of this threat: CERTFR-2020-AVI-070, CVE-2019-12528, DLA-2278-1, DLA-2278-2, DLA-2278-3, DSA-4682-1, FEDORA-2020-56e809930e, FEDORA-2020-790296a8f4, FEDORA-2020-ab8e7463ab, openSUSE-SU-2020:0307-1, openSUSE-SU-2020:0606-1, openSUSE-SU-2020:0623-1, SQUID-2020:2, SUSE-SU-2020:0487-1, SUSE-SU-2020:0493-1, SUSE-SU-2020:0661-1, SUSE-SU-2020:1134-1, SUSE-SU-2020:1156-1, SUSE-SU-2020:14460-1, USN-4289-1, VIGILANCE-VUL-31497.

Description of the vulnerability 

A local attacker can read a memory fragment via FTP Gateway of Squid cache, in order to obtain sensitive information.
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This cybersecurity 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 cybersecurity weakness 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 computer vulnerability bulletin.

Solutions for this threat 

Squid cache: version 4.10.
The version 4.10 is fixed:
  http://www.squid-cache.org/Versions/v4/
  ftp://ftp.squid-cache.org/pub/squid/
  ftp://ftp.squid-cache.org/pub/archive/4/

Debian 10: new squid packages.
New packages are available:
  Debian 10: squid 4.6-1+deb10u2

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

Fedora 32: new squid packages.
New packages are available:
  Fedora 32: squid 4.11-1.fc32

Fedora: new squid packages.
New packages are available:
  Fedora 30: squid 4.10-3.fc30
  Fedora 31: squid 4.10-3.fc31

openSUSE Leap 15.1: new squid packages (04/05/2020).
New packages are available:
  openSUSE Leap 15.1: squid 4.10-lp151.2.14.1

openSUSE Leap 15.1: new squid packages (06/03/2020).
New packages are available:
  openSUSE Leap 15.1: squid 4.10-lp151.2.11.1

openSUSE Leap 15.1: new squid packages (11/05/2020).
New packages are available:
  openSUSE Leap 15.1: squid 4.11-lp151.2.15.2

Oracle Solaris: patch for third party software of April 2020 v2.
A patch is available:
  https://support.oracle.com/rs?type=doc&id=1448883.1

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: new squid packages.
New packages are available:
  SUSE LE 12 SP2: squid 3.5.21-26.20.1
  SUSE LE 12 SP3: squid 3.5.21-26.20.1
  SUSE LE 12 SP4: squid 3.5.21-26.20.1

SUSE LE 12 SP5: new squid packages (26/02/2020).
New packages are available:
  SUSE LE 12 SP5: squid 4.10-4.6.1

SUSE LE 12 SP5: new squid packages (30/04/2020).
New packages are available:
  SUSE LE 12 SP5: squid 4.11-4.9.1

SUSE LE 15 SP1/2: new squid packages.
New packages are available:
  SUSE LE 15 SP1: squid 4.11-5.17.2
  SUSE LE 15 SP2: squid 4.11-5.17.2

SUSE LE 15 SP1: new squid packages.
New packages are available:
  SUSE LE 15 SP1: squid 4.10-5.14.1

Ubuntu: new squid packages.
New packages are available:
  Ubuntu 19.10: squid 4.8-1ubuntu2.2
  Ubuntu 18.04 LTS: squid 3.5.27-1ubuntu1.5
  Ubuntu 16.04 LTS: squid 3.5.12-1ubuntu7.10
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