Use After Free Affecting qemu package, versions <1:6.0+dfsg-3


0.0
medium

Snyk CVSS

    Attack Complexity Low
    Privileges Required High
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.05% (13th percentile)
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NVD
6.7 medium
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SUSE
5.6 medium
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Red Hat
5 medium

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  • Snyk ID SNYK-DEBIANUNSTABLE-QEMU-1054857
  • published 29 Dec 2020
  • disclosed 28 May 2021

How to fix?

Upgrade Debian:unstable qemu to version 1:6.0+dfsg-3 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.

A use-after-free vulnerability was found in the am53c974 SCSI host bus adapter emulation of QEMU in versions before 6.0.0 during the handling of the 'Information Transfer' command (CMD_TI). This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service or potential code execution with the privileges of the QEMU process.