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Use After Free Affecting qemu package, versions <1:5.2+dfsg-10

0.0
low

Snyk CVSS

    Attack Complexity Low
    Privileges Required High
    Scope Changed

    Threat Intelligence

    EPSS 0.07% (30th percentile)
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NVD
3.2 low
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Red Hat
2.5 low

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  • Snyk ID SNYK-DEBIAN11-QEMU-1069988
  • published 3 Feb 2021
  • disclosed 23 Mar 2021
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Introduced: 3 Feb 2021

CVE-2021-3392 Open this link in a new tab
CWE-416 Open this link in a new tab

How to fix?

Upgrade Debian:11 qemu to version 1:5.2+dfsg-10 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:11 relevant fixed versions and status.

A use-after-free flaw was found in the MegaRAID emulator of QEMU. This issue occurs while processing SCSI I/O requests in the case of an error mptsas_free_request() that does not dequeue the request object 'req' from a pending requests queue. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. Versions between 2.10.0 and 5.2.0 are potentially affected.