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Vulnerability of python-apt: Man-in-the-Middle via MD5 Hashes

Synthesis of the vulnerability 

An attacker can act as a Man-in-the-Middle via MD5 Hashes on python-apt, in order to read or write data in the session.
Vulnerable systems: Debian, Ubuntu.
Severity of this threat: 2/4.
Creation date: 23/01/2020.
Références of this weakness: CVE-2019-15795, DLA-2074-1, DSA-4609-1, USN-4247-1, USN-4247-2, USN-4247-3, VIGILANCE-VUL-31418.

Description of the vulnerability 

An attacker can act as a Man-in-the-Middle via MD5 Hashes on python-apt, in order to read or write data in the session.
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This computer weakness bulletin impacts software or systems such as Debian, Ubuntu.

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

Solutions for this threat 

Debian 8: new python-apt packages.
New packages are available:
  Debian 8: python-apt 0.9.3.13

Debian 9/10: new python-apt packages.
New packages are available:
  Debian 9: python-apt 1.4.1
  Debian 10: python-apt 1.8.4.1

Ubuntu: new python-apt packages.
New packages are available:
  Ubuntu 19.10: python-apt 1.9.0ubuntu1.3, python3-apt 1.9.0ubuntu1.3
  Ubuntu 19.04: python-apt 1.8.5~ubuntu0.3, python3-apt 1.8.5~ubuntu0.3
  Ubuntu 18.04 LTS: python-apt 1.6.5ubuntu0.2, python3-apt 1.6.5ubuntu0.2
  Ubuntu 16.04 LTS: python-apt 1.1.0~beta1ubuntu0.16.04.8, python3-apt 1.1.0~beta1ubuntu0.16.04.8
  Ubuntu 14.04 ESM: python-apt 0.9.3.5ubuntu3+esm2, python3-apt 0.9.3.5ubuntu3+esm2
  Ubuntu 12.04 ESM: python-apt 0.8.3ubuntu7.5, python3-apt 0.8.3ubuntu7.5
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