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Vigil@nce - QEMU: denial of service via VirtFS Directory Sharing

February 2021 by Vigil@nce

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

SYNTHESIS OF THE VULNERABILITY

Impacted products: Debian, QEMU, SLES, Ubuntu.

Severity: 1/4.

Consequences: denial of service on server, denial of service on service.

Provenance: user shell.

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

Creation date: 08/02/2021.

DESCRIPTION OF THE VULNERABILITY

An attacker, inside a guest system, can trigger a fatal error via VirtFS Directory Sharing of QEMU, in order to trigger a denial of service on the host system.

ACCESS TO THE FULL VIGIL@NCE BULLETIN

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




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