Release of Invalid Pointer or Reference Affecting qemu package, versions <1:6.0+dfsg-3


0.0
high

Snyk CVSS

    Attack Complexity High
    Scope Changed
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.33% (71st percentile)
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NVD
8.5 high
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SUSE
6 medium
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Red Hat
8.5 high

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  • Snyk ID SNYK-DEBIAN12-QEMU-1558510
  • published 5 Aug 2021
  • disclosed 5 Aug 2021

How to fix?

Upgrade Debian:12 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:12 relevant fixed versions and status.

A flaw was found in the USB redirector device emulation of QEMU in versions prior to 6.1.0-rc2. It occurs when dropping packets during a bulk transfer from a SPICE client due to the packet queue being full. A malicious SPICE client could use this flaw to make QEMU call free() with faked heap chunk metadata, resulting in a crash of QEMU or potential code execution with the privileges of the QEMU process on the host.