Red Hat Security Advisory

RHSA-2021:3943

RHV-H security update (redhat-virtualization-host) 4.3.19

Released 2021-10-20 · Red Hat rating Moderate · View on Red Hat →

Fixed in

RHEL 7-based RHEV-H for RHEV 4 (build requirements) redhat-virtualization-host-4.3.19-20211013.0.el7_9, redhat-virtualization-host-image-update-4.3.19-20211013.0.el7_9
Red Hat Virtualization 4 Hypervisor for RHEL 7 redhat-virtualization-host-4.3.19-20211013.0.el7_9, redhat-virtualization-host-image-update-4.3.19-20211013.0.el7_9

Fixes 1 record

TI-2021-05506 CVE-2021-22543

Improper memory handling in Linux KVM

LOW 39

An issue was discovered in Linux: KVM through Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks and can lead to pages being freed while still accessible by the VMM and guest.

CVSS 4.0HIGH 8.7 Local Low privileges No interaction EPSS 0.0066 Published 2021-05-26 Partial fix CWE-119