Out-of-bounds Write Affecting qemu package, versions <1:6.1+dfsg-2


0.0
high

Snyk CVSS

    Attack Complexity Low
    Scope Changed
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.05% (13th percentile)
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NVD
7.4 high
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SUSE
7.8 high
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Red Hat
7.8 high

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  • Snyk ID SNYK-DEBIAN12-QEMU-1567319
  • published 19 Aug 2021
  • disclosed 25 Aug 2021

How to fix?

Upgrade Debian:12 qemu to version 1:6.1+dfsg-2 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:12 relevant fixed versions and status.

An out-of-bounds write flaw was found in the UAS (USB Attached SCSI) device emulation of QEMU in versions prior to 6.2.0-rc0. The device uses the guest supplied stream number unchecked, which can lead to out-of-bounds access to the UASDevice->data3 and UASDevice->status3 fields. A malicious guest user could use this flaw to crash QEMU or potentially achieve code execution with the privileges of the QEMU process on the host.