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Vigil@nce - Xen: privilege escalation via Oxenstored Root Node

February 2021 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: XenServer, Debian, Fedora, Xen.

Severity: 2/4.

Consequences: administrator access/rights, privileged
access/rights.

Provenance: user shell.

Confidence: confirmed by the editor (5/5).

Creation date: 15/12/2020.

DESCRIPTION OF THE VULNERABILITY

An attacker, inside a guest system, can bypass restrictions via
Oxenstored Root Node of Xen, in order to escalate his privileges
on the host system.

ACCESS TO THE FULL VIGIL@NCE BULLETIN

https://vigilance.fr/vulnerability/Xen-privilege-escalation-via-Oxenstored-Root-Node-34119


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