QID 240585

Date Published: 2022-08-03

QID 240585: Red Hat Update for virt:rhel and virt-devel:rhel security (RHSA-2022:5821)

kernel-based virtual machine (kvm) offers a full virtualization solution for linux on numerous hardware platforms.
The virt:rhel module contains packages which provide user-space components used to run virtual machines using kvm.
The packages also provide apis for managing and interacting with the virtualized systems.

Security Fix(es):
  • qemu: qxl: integer overflow in cursor_alloc() can lead to heap buffer overflow (cve-2021-4206)
  • qemu: qxl: double fetch in qxl_cursor() can lead to heap buffer overflow (cve-2021-4207)
  • qemu: virtio-net: map leaking on error during receive (cve-2022-26353)
  • qemu: vhost-vsock: missing virtqueue detach on error can lead to memory leak (cve-2022-26354)

Affected Products:

  • Red Hat enterprise linux for x86_64 8 x86_64
  • Red Hat enterprise linux for x86_64 - extended update support 8.6 x86_64
  • Red Hat enterprise linux server - tus 8.6 x86_64
  • Red Hat enterprise linux for x86_64 - update services for sap solutions 8.6 x86_64



Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

Successful exploitation of this vulnerability could lead to a security breach or could affect integrity, availability, and confidentiality.

  • CVSS V3 rated as Critical - 8.8 severity.
  • CVSS V2 rated as Medium - 4.6 severity.
    • Solution
    Refer to Red Hat security advisory RHSA-2022:5821 for updates and patch information.
    Vendor References

    CVEs related to QID 240585

    CVE-2021-4206 | CVE-2021-4207 | CVE-2022-26353 | CVE-2022-26354 |
    Software Advisories
    Advisory ID Software Component Link
    RHSA-2022:5821 Red Hat Enterprise Linux URL Logo access.redhat.com/errata/RHSA-2022:5821
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