Vigil@nce - QEMU: privilege escalation via Virtiofsd Xattrmap Option
March 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: QEMU.
Severity: 1/4.
Consequences: administrator access/rights, privileged
access/rights.
Provenance: user shell.
Confidence: confirmed by the editor (5/5).
Creation date: 08/03/2021.
DESCRIPTION OF THE VULNERABILITY
An attacker, inside a guest system, can bypass restrictions via
Virtiofsd Xattrmap Option of QEMU, in order to escalate his
privileges on the host system.
ACCESS TO THE FULL VIGIL@NCE BULLETIN
https://vigilance.fr/vulnerability/QEMU-privilege-escalation-via-Virtiofsd-Xattrmap-Option-34767