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Vulnerability of MediaWiki: multiple vulnerabilities

Synthesis of the vulnerability 

An attacker can use several vulnerabilities of MediaWiki.
Vulnerable software: Debian, Fedora.
Severity of this announce: 2/4.
Number of vulnerabilities in this bulletin: 6.
Creation date: 18/12/2020.
Références of this computer vulnerability: CVE-2020-35474, CVE-2020-35475, CVE-2020-35477, CVE-2020-35478, CVE-2020-35479, CVE-2020-35480, DLA-2504-1, DSA-4816-1, FEDORA-2020-0be2d40e13, VIGILANCE-VUL-34171.

Description of the vulnerability 

An attacker can use several vulnerabilities of MediaWiki.
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This computer threat bulletin impacts software or systems such as Debian, Fedora.

Our Vigil@nce team determined that the severity of this security threat is medium.

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

This bulletin is about 6 vulnerabilities.

An attacker with a expert ability can exploit this computer vulnerability alert.

Solutions for this threat 

Debian 10: new mediawiki packages.
New packages are available:
  Debian 10: mediawiki 1:1.31.12-1~deb10u1

Debian 9: new mediawiki packages.
New packages are available:
  Debian 9: mediawiki 1:1.27.7-1~deb9u7

Fedora 33: new mediawiki packages.
New packages are available:
  Fedora 33: mediawiki 1.35.1-1.fc33
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