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Vigil@nce - FreeBSD: privilege escalation via IPv6 Socket Option

September 2020 by Vigil@nce

This bulletin was written by Vigil@nce : https://vigilance.fr/offer/Computer-vulnerabilities-watch-and-alert

SYNTHESIS OF THE VULNERABILITY

 Impacted products: FreeBSD.
 Severity: 2/4.
 Consequences: administrator access/rights, privileged
access/rights.
 Provenance: user shell.
 Confidence: confirmed by the editor (5/5).
 Creation date: 09/07/2020.

DESCRIPTION OF THE VULNERABILITY

An attacker, inside a guest system, can bypass restrictions via
IPv6 Socket Option of FreeBSD, in order to escalate his privileges
on the host system.

ACCESS TO THE FULL VIGIL@NCE BULLETIN

https://vigilance.fr/vulnerability/FreeBSD-privilege-escalation-via-IPv6-Socket-Option-32766


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