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Vulnerability of OpenSSH: privilege escalation via LogVerbose Low-privilege Sandboxed Escape

Synthesis of the vulnerability 

An attacker can bypass restrictions via LogVerbose Low-privilege Sandboxed Escape of OpenSSH, in order to escalate his privileges.
Impacted systems: OpenSSH.
Severity of this alert: 1/4.
Creation date: 19/04/2021.
Références of this alert: CERTFR-2021-AVI-281, VIGILANCE-VUL-35105.

Description of the vulnerability 

An attacker can bypass restrictions via LogVerbose Low-privilege Sandboxed Escape of OpenSSH, in order to escalate his privileges.
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This cybersecurity bulletin impacts software or systems such as OpenSSH.

Our Vigil@nce team determined that the severity of this cybersecurity weakness is low.

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

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

Solutions for this threat 

OpenSSH: version 8.6.
The version 8.6 is fixed:
  https://www.openssh.com/
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