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Vulnerability of dojo: memory corruption via Prototype Pollution

Synthesis of the vulnerability 

An attacker can trigger a memory corruption via Prototype Pollution of dojo, in order to trigger a denial of service, and possibly to run code.
Vulnerable software: Debian, MariaDB ~ precise, MySQL Community, MySQL Enterprise, Percona Server.
Severity of this announce: 2/4.
Number of vulnerabilities in this bulletin: 2.
Creation date: 12/03/2020.
Références of this computer vulnerability: cpujul2020, CVE-2020-5258, CVE-2020-5259, DLA-2139-1, VIGILANCE-VUL-31771.

Description of the vulnerability 

An attacker can trigger a memory corruption via Prototype Pollution of dojo, in order to trigger a denial of service, and possibly to run code.
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This computer weakness alert impacts software or systems such as Debian, MariaDB ~ precise, MySQL Community, MySQL Enterprise, Percona Server.

Our Vigil@nce team determined that the severity of this weakness note is medium.

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

This bulletin is about 2 vulnerabilities.

An attacker with a expert ability can exploit this weakness bulletin.

Solutions for this threat 

Debian 8: new dojo packages.
New packages are available:
  Debian 8: dojo 1.10.2+dfsg-1+deb8u3

Oracle MySQL: version 5.6.49.
The version 5.6.49 is fixed:
  https://support.oracle.com/rs?type=doc&id=2683189.1
  https://www.mysql.com/fr/downloads/
  https://dev.mysql.com/downloads/mysql/

Oracle MySQL: version 5.7.31.
The version 5.7.31 is fixed:
  https://support.oracle.com/rs?type=doc&id=2683189.1
  https://www.mysql.com/fr/downloads/
  https://dev.mysql.com/downloads/mysql/

Oracle MySQL: version 8.0.21.
The version 8.0.21 is fixed:
  https://support.oracle.com/rs?type=doc&id=2683189.1
  https://www.mysql.com/fr/downloads/
  https://dev.mysql.com/downloads/mysql/

Percona Server for MySQL: version 5.6.49-89.0.
The version 5.6.49-89.0 is fixed:
  https://www.percona.com/
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