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Integer Overflow or Wraparound Affecting qemu package, versions <1:5.2+dfsg-11

0.0
medium

Snyk CVSS

    Attack Complexity Low
    Privileges Required High
    Scope Changed
    Availability High

    Threat Intelligence

    EPSS 0.05% (14th percentile)
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NVD
6 medium
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SUSE
3.2 low
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Red Hat
6 medium

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  • Snyk ID SNYK-DEBIANUNSTABLE-QEMU-1312126
  • published 18 Jun 2021
  • disclosed 24 Feb 2022
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Introduced: 18 Jun 2021

CVE-2021-3607 Open this link in a new tab
CWE-190 Open this link in a new tab

How to fix?

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

An integer overflow was found in the QEMU implementation of VMWare's paravirtual RDMA device in versions prior to 6.1.0. The issue occurs while handling a "PVRDMA_REG_DSRHIGH" write from the guest due to improper input validation. This flaw allows a privileged guest user to make QEMU allocate a large amount of memory, resulting in a denial of service. The highest threat from this vulnerability is to system availability.