Improper Privilege Management Affecting qemu package, versions <1.5.0+dfsg-1


0.0
high

Snyk CVSS

    Attack Complexity Low
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.08% (33rd percentile)
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NVD
7.8 high
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Red Hat
7.1 high

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  • Snyk ID SNYK-DEBIAN11-QEMU-522321
  • published 27 Jun 2018
  • disclosed 30 Dec 2019

How to fix?

Upgrade Debian:11 qemu to version 1.5.0+dfsg-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu package and not the qemu package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

A flaw was found in the way qemu v1.3.0 and later (virtio-rng) validates addresses when guest accesses the config space of a virtio device. If the virtio device has zero/small sized config space, such as virtio-rng, a privileged guest user could use this flaw to access the matching host's qemu address space and thus increase their privileges on the host.