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Vulnerability of Python: denial of service via urllib.request.AbstractBasicAuthHandler

Synthesis of the vulnerability 

An attacker can trigger a fatal error via urllib.request.AbstractBasicAuthHandler of Python, in order to trigger a denial of service.
Impacted systems: Fedora, IBM i, openSUSE Leap, Python, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this alert: 2/4.
Creation date: 31/01/2020.
Références of this alert: 6206164, 6206166, CVE-2020-8492, FEDORA-2020-6a88dad4a0, openSUSE-SU-2020:0274-1, SUSE-SU-2020:0467-1, SUSE-SU-2020:0510-1, SUSE-SU-2020:0557-1, SUSE-SU-2020:14306-1, USN-4333-1, USN-4333-2, VIGILANCE-VUL-31481.

Description of the vulnerability 

An attacker can trigger a fatal error via urllib.request.AbstractBasicAuthHandler of Python, in order to trigger a denial of service.
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This security weakness impacts software or systems such as Fedora, IBM i, openSUSE Leap, Python, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

Our Vigil@nce team determined that the severity of this threat bulletin 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 threat.

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: patch for urllib.request.AbstractBasicAuthHandler.
A patch is indicated in information sources.

Fedora 31: new python38 packages.
New packages are available:
  Fedora 31: python38 3.8.3-1.fc31

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

openSUSE Leap 15.1: new python3 packages.
New packages are available:
  openSUSE Leap 15.1: python3 3.6.10-lp151.6.11.1

SUSE LE 11 SP3/4: new python packages.
New packages are available:
  SUSE LE 11 SP3: python 2.6.9-40.35.1
  SUSE LE 11 SP4: python 2.6.9-40.35.1

SUSE LE 12 SP5: new python36 packages.
New packages are available:
  SUSE LE 12 SP5: python36 3.6.10-4.6.1

SUSE LE 15 SP1: new python3 packages.
New packages are available:
  SUSE LE 15 SP1: python3 3.6.10-3.47.2

SUSE LE 15 SP1: new python packages.
New packages are available:
  SUSE LE 15 SP1: python 2.7.17-7.35.1

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
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