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Vulnerability of Python Twisted: Man-in-the-Middle

Synthesis of the vulnerability 

An attacker can act as a Man-in-the-Middle on Python Twisted, in order to read or write data in the session.
Vulnerable software: openSUSE Leap, Solaris, SLES, Ubuntu.
Severity of this announce: 2/4.
Creation date: 26/08/2019.
Références of this computer vulnerability: cpuapr2020, CVE-2019-12855, openSUSE-SU-2019:2068-1, openSUSE-SU-2019:2110-1, SUSE-SU-2019:2212-1, USN-4308-1, USN-4308-2, VIGILANCE-VUL-30151.

Description of the vulnerability 

An attacker can act as a Man-in-the-Middle on Python Twisted, in order to read or write data in the session.
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This weakness bulletin impacts software or systems such as openSUSE Leap, Solaris, SLES, Ubuntu.

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

Solutions for this threat 

openSUSE Leap 15: new python-Twisted packages.
New packages are available:
  openSUSE Leap 15.0: python-Twisted 17.9.0-lp150.2.6.1
  openSUSE Leap 15.1: python-Twisted 17.9.0-lp151.3.6.1

Oracle Solaris: CPU of April 2020.
A Critical Patch Update is available:
  https://support.oracle.com/rs?type=doc&id=2650589.1

Oracle Solaris: patch for third party software of Januray 2020 v3.
A patch is available:
  https://support.oracle.com/rs?type=doc&id=1448883.1

SUSE LE 15: new python-Twisted packages (11/09/2019).
New packages are available:
  SUSE LE 15 RTM: python-Twisted 17.9.0-bp150.4.6.1

SUSE LE 15: new python-Twisted packages (26/08/2019).
New packages are available:
  SUSE LE 15 SP1: python-Twisted 17.9.0-3.6.1

Ubuntu 14.04: new python-twisted packages.
New packages are available:
  Ubuntu 14.04 ESM: python-twisted 13.2.0-1ubuntu1.2+esm1

Ubuntu: new python-twisted packages.
New packages are available:
  Ubuntu 19.10: python-twisted 18.9.0-3ubuntu1.1
  Ubuntu 18.04 LTS: python-twisted 17.9.0-2ubuntu0.1
  Ubuntu 16.04 LTS: python-twisted 16.0.0-1ubuntu0.4
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