The Vigil@nce team watches public vulnerabilities impacting your computers, and then offers security solutions, a vigilance database and tools to fix them.

Vulnerability of FreeBSD: information disclosure via jails

Synthesis of the vulnerability 

A local attacker, inside a guest system, can read a memory fragment via jails of FreeBSD, in order to obtain sensitive information on the host system.
Impacted systems: FreeBSD.
Severity of this alert: 1/4.
Creation date: 19/03/2020.
Références of this alert: CVE-2020-7453, FreeBSD-SA-20:08.jail, VIGILANCE-VUL-31841.

Description of the vulnerability 

A local attacker, inside a guest system, can read a memory fragment via jails of FreeBSD, in order to obtain sensitive information on the host system.
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This threat impacts software or systems such as FreeBSD.

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

Solutions for this threat 

FreeBSD: patch for jails.
A patch is available:
  https://security.FreeBSD.org/patches/SA-20:08/kern_jail.patch
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