Use After Free Affecting qemu package, versions <1:7.1+dfsg-1


0.0
medium

Snyk CVSS

    Attack Complexity Low
    Privileges Required High
    Availability High

    Threat Intelligence

    EPSS 0.05% (18th percentile)
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NVD
4.4 medium
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SUSE
5.3 medium
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Red Hat
5.3 medium

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  • Snyk ID SNYK-DEBIAN12-QEMU-2440529
  • published 3 Apr 2022
  • disclosed 26 Aug 2022

How to fix?

Upgrade Debian:12 qemu to version 1:7.1+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:12 relevant fixed versions and status.

A use-after-free vulnerability was found in the LSI53C895A SCSI Host Bus Adapter emulation of QEMU. The flaw occurs while processing repeated messages to cancel the current SCSI request via the lsi_do_msgout function. This flaw allows a malicious privileged user within the guest to crash the QEMU process on the host, resulting in a denial of service.