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CVE-2021-3607

CVE-2021-3607

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 6.0 · Medium · EPSS 0.3% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • qemu

    Versions
    • qemu-kvm 6.1.0: Affected

    No fix published

  • qemu Debian:12

    Affected ranges
    • ECOSYSTEM: < 1:5.2+dfsg-11

    Update to 1:5.2+dfsg-11

  • qemu Debian:13

    Affected ranges
    • ECOSYSTEM: < 1:5.2+dfsg-11

    Update to 1:5.2+dfsg-11

  • qemu Debian:14

    Affected ranges
    • ECOSYSTEM: < 1:5.2+dfsg-11

    Update to 1:5.2+dfsg-11

  • qemu Ubuntu:20.04:LTS

    Versions
    • 1:4.0+dfsg-0ubuntu9
    • 1:4.0+dfsg-0ubuntu10
    • 1:4.2-1ubuntu1
    • 1:4.2-1ubuntu2
    • 1:4.2-3ubuntu1
    • 1:4.2-3ubuntu2
    • 1:4.2-3ubuntu3
    • 1:4.2-3ubuntu4
    • 1:4.2-3ubuntu5
    • 1:4.2-3ubuntu6
    • 1:4.2-3ubuntu6.1
    • 1:4.2-3ubuntu6.2
    • 1:4.2-3ubuntu6.3
    • 1:4.2-3ubuntu6.4
    • 1:4.2-3ubuntu6.5
    • 1:4.2-3ubuntu6.6
    • 1:4.2-3ubuntu6.7
    • 1:4.2-3ubuntu6.8
    • 1:4.2-3ubuntu6.9
    • 1:4.2-3ubuntu6.10
    • 1:4.2-3ubuntu6.11
    • 1:4.2-3ubuntu6.12
    • 1:4.2-3ubuntu6.14
    • 1:4.2-3ubuntu6.15
    • 1:4.2-3ubuntu6.16
    Affected ranges
    • ECOSYSTEM: < 1:4.2-3ubuntu6.17

    Update to 1:4.2-3ubuntu6.17

  • qemu Ubuntu:22.04:LTS

    Affected ranges
    • ECOSYSTEM: < 1:6.0+dfsg-2expubuntu1

    Update to 1:6.0+dfsg-2expubuntu1

Original sources

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