Access Restriction Bypass Affecting qemu package, versions <1:2.3+dfsg-5


0.0
medium

Snyk CVSS

    Attack Complexity Low
    Availability High

    Threat Intelligence

    EPSS 0.06% (27th percentile)
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NVD
6.2 medium

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  • Snyk ID SNYK-DEBIANUNSTABLE-QEMU-428082
  • published 3 Jun 2015
  • disclosed 3 Jun 2015

How to fix?

Upgrade Debian:unstable qemu to version 1:2.3+dfsg-5 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:unstable relevant fixed versions and status.

Xen 3.3.x through 4.5.x does not properly restrict write access to the host MSI message data field, which allows local x86 HVM guest administrators to cause a denial of service (host interrupt handling confusion) via vectors related to qemu and accessing spanning multiple fields.