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CVE-2021-3750

CVE-2021-3750

Cette page présente des faits issus de sources publiques. Consultez l’avis original avant toute mise à jour.

A DMA reentrancy issue was found in the USB EHCI controller emulation of QEMU. EHCI does not verify if the Buffer Pointer overlaps with its MMIO region when it transfers the USB packets. Crafted content may be written to the controller's registers and trigger undesirable actions (such as reset) while the device is still transferring packets. This can ultimately lead to a use-after-free issue. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition, or potentially execute arbitrary code within the context of the QEMU process on the host. This flaw affects QEMU versions before 7.0.0.

CVSS 8.2 · Élevée · EPSS 0,5% · Correctif disponible

Publication
Mise à jour

Pile logicielle: system

Produits et versions concernés

  • qemu

    Versions du logiciel
    • QEMU before version 7.0.0: Concernée

    Aucun correctif publié

  • qemu Debian:12

    Plages de versions concernées
    • ECOSYSTEM: < 1:7.0+dfsg-1

    Mettez à jour vers 1:7.0+dfsg-1

  • qemu Debian:13

    Plages de versions concernées
    • ECOSYSTEM: < 1:7.0+dfsg-1

    Mettez à jour vers 1:7.0+dfsg-1

  • qemu Debian:14

    Plages de versions concernées
    • ECOSYSTEM: < 1:7.0+dfsg-1

    Mettez à jour vers 1:7.0+dfsg-1

  • qemu Ubuntu:18.04:LTS

    Versions du logiciel
    • 1:2.10+dfsg-0ubuntu3
    • 1:2.10+dfsg-0ubuntu4
    • 1:2.10+dfsg-0ubuntu5
    • 1:2.11+dfsg-1ubuntu1
    • 1:2.11+dfsg-1ubuntu2
    • 1:2.11+dfsg-1ubuntu4
    • 1:2.11+dfsg-1ubuntu5
    • 1:2.11+dfsg-1ubuntu6
    • 1:2.11+dfsg-1ubuntu7
    • 1:2.11+dfsg-1ubuntu7.1
    • 1:2.11+dfsg-1ubuntu7.2
    • 1:2.11+dfsg-1ubuntu7.3
    • 1:2.11+dfsg-1ubuntu7.4
    • 1:2.11+dfsg-1ubuntu7.5
    • 1:2.11+dfsg-1ubuntu7.6
    • 1:2.11+dfsg-1ubuntu7.7
    • 1:2.11+dfsg-1ubuntu7.8
    • 1:2.11+dfsg-1ubuntu7.9
    • 1:2.11+dfsg-1ubuntu7.10
    • 1:2.11+dfsg-1ubuntu7.12
    • 1:2.11+dfsg-1ubuntu7.13
    • 1:2.11+dfsg-1ubuntu7.14
    • 1:2.11+dfsg-1ubuntu7.15
    • 1:2.11+dfsg-1ubuntu7.17
    • 1:2.11+dfsg-1ubuntu7.18
    • 1:2.11+dfsg-1ubuntu7.19
    • 1:2.11+dfsg-1ubuntu7.20
    • 1:2.11+dfsg-1ubuntu7.21
    • 1:2.11+dfsg-1ubuntu7.22
    • 1:2.11+dfsg-1ubuntu7.23
    • 1:2.11+dfsg-1ubuntu7.25
    • 1:2.11+dfsg-1ubuntu7.26
    • 1:2.11+dfsg-1ubuntu7.27
    • 1:2.11+dfsg-1ubuntu7.28
    • 1:2.11+dfsg-1ubuntu7.29
    • 1:2.11+dfsg-1ubuntu7.31
    • 1:2.11+dfsg-1ubuntu7.32
    • 1:2.11+dfsg-1ubuntu7.33
    • 1:2.11+dfsg-1ubuntu7.34
    • 1:2.11+dfsg-1ubuntu7.35
    • 1:2.11+dfsg-1ubuntu7.36
    • 1:2.11+dfsg-1ubuntu7.37
    • 1:2.11+dfsg-1ubuntu7.38
    • 1:2.11+dfsg-1ubuntu7.39
    • 1:2.11+dfsg-1ubuntu7.40
    Plages de versions concernées
    • ECOSYSTEM: < 1:2.11+dfsg-1ubuntu7.41

    Mettez à jour vers 1:2.11+dfsg-1ubuntu7.41

  • qemu Ubuntu:20.04:LTS

    Versions du logiciel
    • 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
    • 1:4.2-3ubuntu6.17
    • 1:4.2-3ubuntu6.18
    • 1:4.2-3ubuntu6.19
    • 1:4.2-3ubuntu6.21
    • 1:4.2-3ubuntu6.23
    Plages de versions concernées
    • ECOSYSTEM: < 1:4.2-3ubuntu6.24

    Mettez à jour vers 1:4.2-3ubuntu6.24

  • qemu Ubuntu:22.04:LTS

    Versions du logiciel
    • 1:6.0+dfsg-2expubuntu1
    • 1:6.0+dfsg-2expubuntu2
    • 1:6.0+dfsg-2expubuntu4
    • 1:6.2+dfsg-2ubuntu5
    • 1:6.2+dfsg-2ubuntu6
    • 1:6.2+dfsg-2ubuntu6.1
    • 1:6.2+dfsg-2ubuntu6.2
    • 1:6.2+dfsg-2ubuntu6.3
    • 1:6.2+dfsg-2ubuntu6.4
    • 1:6.2+dfsg-2ubuntu6.5
    Plages de versions concernées
    • ECOSYSTEM: < 1:6.2+dfsg-2ubuntu6.6

    Mettez à jour vers 1:6.2+dfsg-2ubuntu6.6

Sources originales

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