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Vigil@nce - Xen: denial of service via a change of page table type

March 2018 by Vigil@nce

This bulletin was written by Vigil@nce : https://vigilance.fr/offer

SYNTHESIS OF THE VULNERABILITY

A privileged attacker in a guest system can request a change of page table type to Xen without unmapping related pages, in order to make the host crash.

Impacted products: Debian, Fedora, Xen.

Severity: 1/4.

Creation date: 27/02/2018.

DESCRIPTION OF THE VULNERABILITY

A privileged attacker in a guest system can request a change of page table type to Xen without unmapping related pages, in order to make the host crash.

ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN

https://vigilance.fr/vulnerability/...




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