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Vulnerability of Python urllib2: information disclosure via CRLF Injection Host Control Characters

Synthesis of the vulnerability 

An attacker can bypass access restrictions to data via CRLF Injection Host Control Characters of Python urllib2, in order to obtain sensitive information.
Vulnerable software: Debian, Fedora, IBM i, openSUSE Leap, Solaris, Python, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this announce: 2/4.
Creation date: 24/10/2019.
Références of this computer vulnerability: 6206164, 6206166, CVE-2019-18348, DLA-2280-1, FEDORA-2020-16167a66a2, FEDORA-2020-4cf7c3910b, FEDORA-2020-8bdd3fd7a4, FEDORA-2020-ea5bdbcc90, openSUSE-SU-2020:0696-1, SUSE-SU-2020:0750-1, SUSE-SU-2020:1339-1, USN-4333-1, USN-4333-2, VIGILANCE-VUL-30709.

Description of the vulnerability 

An attacker can bypass access restrictions to data via CRLF Injection Host Control Characters of Python urllib2, in order to obtain sensitive information.
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This weakness announce impacts software or systems such as Debian, Fedora, IBM i, openSUSE Leap, Solaris, Python, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

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

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

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

Solutions for this threat 

Python: version 3.8.3.
The version 3.8.3 is fixed:
  https://www.python.org/downloads/release/python-383/

Python: version 3.7.8.
The version 3.7.8 is fixed:
  https://www.python.org/

Python: version 3.6.11.
The version 3.6.11 is fixed:
  https://www.python.org/

Fedora 31-32: new python35 packages.
New packages are available:
  Fedora 31: python35 3.5.10-1.fc31
  Fedora 32: python35 3.5.10-1.fc32

Python: version 3.5.10.
The version 3.5.10 is fixed:
  https://www.python.org/downloads/release/python-3510/

Python urllib2: patch for CRLF Injection Host Control Characters.
A patch is indicated in information sources.

Debian 9: new python3.5 packages.
New packages are available:
  Debian 9: python3.5 3.5.3-1+deb9u2

Fedora 31: new python36 packages.
New packages are available:
  Fedora 31: python36 3.6.11-1.fc31

Fedora 32: new python36 packages.
New packages are available:
  Fedora 32: python36 3.6.11-1.fc32

IBM i: new python3 packages.
New packages are available:
  IBM i: python3 3.6.10-2.ibmi7.2

openSUSE Leap 15.1: new python packages.
New packages are available:
  openSUSE Leap 15.1: python 2.7.17-lp151.10.17.1

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

SUSE LE 12 SP5: new python36 packages.
New packages are available:
  SUSE LE 12 SP5: python36 3.6.10-4.9.1

SUSE LE 15 SP1: new python2 packages.
New packages are available:
  SUSE LE 15 SP1: python 2.7.17-7.38.1

Ubuntu: new Python packages.
New packages are available:
  Ubuntu 20.04 LTS: python3.8 3.8.2-1ubuntu1.1
  Ubuntu 19.10: python3.7 3.7.5-2~19.10ubuntu1
  Ubuntu 18.04 LTS: python2.7 2.7.17-1~18.04ubuntu1, python3.6 3.6.9-1~18.04ubuntu1
  Ubuntu 16.04 LTS: python2.7 2.7.12-1ubuntu0~16.04.11, python3.5 3.5.2-2ubuntu0~16.04.10
  Ubuntu 14.04 ESM: python2.7 2.7.6-8ubuntu0.6+esm5, python3.4 3.4.3-1ubuntu1~14.04.7+esm6
  Ubuntu 12.04 ESM: python2.7 2.7.3-0ubuntu3.17

Wind River Linux: version 10.17.41.21.
The version 10.17.41.21 is fixed:
  https://support2.windriver.com/

Wind River Linux: version 10.18.44.17.
The version 10.18.44.17 is fixed:
  https://support2.windriver.com/

Wind River Linux: version 10.19.45.7.
The version 10.19.45.7 is fixed:
  https://support2.windriver.com/
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