CVE-2021-4206

CVE Details

Release Date:2022-04-29

Description


A flaw was found in the QXL display device emulation in QEMU. An integer overflow in the cursor_alloc() function can lead to the allocation of a small cursor object followed by a subsequent heap-based buffer overflow. This flaw allows a malicious privileged guest user to crash the QEMU process on the host or potentially execute arbitrary code within the context of the QEMU process.

See more information about CVE-2021-4206 from MITRE CVE dictionary and NIST NVD


CVSS v3.0 metrics


NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.

Base Score: 8.2 Base Metrics: AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Access Vector: Local network Attack Complexity: Low
Privileges Required: High User Interaction: None
Scope: Changed Confidentiality Impact: High
Integrity Impact: High Availability Impact: High

Errata information


PlatformErrataRelease Date
Oracle Linux version 7 (qemu)ELSA-2022-96692022-08-01
Oracle Linux version 8 (hivex)ELSA-2022-58212022-08-05
Oracle Linux version 8 (hivex)ELSA-2022-97002022-08-08
Oracle Linux version 8 (hivex)ELSA-2022-98622022-10-13
Oracle Linux version 8 (libguestfs)ELSA-2022-58212022-08-05
Oracle Linux version 8 (libguestfs)ELSA-2022-97002022-08-08
Oracle Linux version 8 (libguestfs)ELSA-2022-98622022-10-13
Oracle Linux version 8 (libguestfs-winsupport)ELSA-2022-58212022-08-05
Oracle Linux version 8 (libguestfs-winsupport)ELSA-2022-97002022-08-08
Oracle Linux version 8 (libguestfs-winsupport)ELSA-2022-98622022-10-13
Oracle Linux version 8 (libiscsi)ELSA-2022-58212022-08-05
Oracle Linux version 8 (libiscsi)ELSA-2022-97002022-08-08
Oracle Linux version 8 (libiscsi)ELSA-2022-98622022-10-13
Oracle Linux version 8 (libnbd)ELSA-2022-58212022-08-05
Oracle Linux version 8 (libnbd)ELSA-2022-97002022-08-08
Oracle Linux version 8 (libnbd)ELSA-2022-98622022-10-13
Oracle Linux version 8 (libtpms)ELSA-2022-58212022-08-05
Oracle Linux version 8 (libtpms)ELSA-2022-98622022-10-13
Oracle Linux version 8 (libvirt)ELSA-2022-58212022-08-05
Oracle Linux version 8 (libvirt)ELSA-2022-97002022-08-08
Oracle Linux version 8 (libvirt)ELSA-2022-98622022-10-13
Oracle Linux version 8 (libvirt-dbus)ELSA-2022-58212022-08-05
Oracle Linux version 8 (libvirt-dbus)ELSA-2022-97002022-08-08
Oracle Linux version 8 (libvirt-dbus)ELSA-2022-98622022-10-13
Oracle Linux version 8 (libvirt-python)ELSA-2022-58212022-08-05
Oracle Linux version 8 (libvirt-python)ELSA-2022-97002022-08-08
Oracle Linux version 8 (libvirt-python)ELSA-2022-98622022-10-13
Oracle Linux version 8 (nbdkit)ELSA-2022-58212022-08-05
Oracle Linux version 8 (nbdkit)ELSA-2022-97002022-08-08
Oracle Linux version 8 (nbdkit)ELSA-2022-98622022-10-13
Oracle Linux version 8 (netcf)ELSA-2022-58212022-08-05
Oracle Linux version 8 (netcf)ELSA-2022-97002022-08-08
Oracle Linux version 8 (netcf)ELSA-2022-98622022-10-13
Oracle Linux version 8 (perl-Sys-Virt)ELSA-2022-58212022-08-05
Oracle Linux version 8 (perl-Sys-Virt)ELSA-2022-97002022-08-08
Oracle Linux version 8 (perl-Sys-Virt)ELSA-2022-98622022-10-13
Oracle Linux version 8 (qemu-kvm)ELSA-2022-58212022-08-05
Oracle Linux version 8 (qemu-kvm)ELSA-2022-97002022-08-08
Oracle Linux version 8 (qemu-kvm)ELSA-2022-98622022-10-13
Oracle Linux version 8 (seabios)ELSA-2022-58212022-08-05
Oracle Linux version 8 (seabios)ELSA-2022-97002022-08-08
Oracle Linux version 8 (seabios)ELSA-2022-98622022-10-13
Oracle Linux version 8 (sgabios)ELSA-2022-58212022-08-05
Oracle Linux version 8 (sgabios)ELSA-2022-97002022-08-08
Oracle Linux version 8 (sgabios)ELSA-2022-98622022-10-13
Oracle Linux version 8 (supermin)ELSA-2022-58212022-08-05
Oracle Linux version 8 (supermin)ELSA-2022-97002022-08-08
Oracle Linux version 8 (supermin)ELSA-2022-98622022-10-13
Oracle Linux version 8 (swtpm)ELSA-2022-58212022-08-05
Oracle Linux version 8 (swtpm)ELSA-2022-98622022-10-13
Oracle Linux version 8 (virt-v2v)ELSA-2022-58212022-08-05
Oracle Linux version 8 (virt-v2v)ELSA-2022-98622022-10-13
Oracle Linux version 9 (qemu-kvm)ELSA-2022-98692022-10-10



This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team

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