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NULL Pointer Dereference Affecting qemu package, versions <1:6.2+dfsg-2

0.0
medium

Snyk CVSS

    Attack Complexity Low
    Privileges Required High
    Scope Changed
    Availability High

    Threat Intelligence

    EPSS 0.08% (32nd percentile)
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NVD
6 medium
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Red Hat
6 medium

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  • Snyk ID SNYK-DEBIAN12-QEMU-2325299
  • published 24 Dec 2021
  • disclosed 24 Aug 2022
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Introduced: 24 Dec 2021

CVE-2021-4158 Open this link in a new tab
CWE-476 Open this link in a new tab

How to fix?

Upgrade Debian:12 qemu to version 1:6.2+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.

A NULL pointer dereference issue was found in the ACPI code of QEMU. A malicious, privileged user within the guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition.