Topic: An update for the virt:rhel and virt-devel:rhel modules is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

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Details: 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) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Bug Fix(es): * RHEL 9.0 guest with vsock device migration failed from RHEL 9.0 > RHEL 8.6 (BZ#2071103) * Fail to rebuild the reference count tables of qcow2 image on host block devices (e.g. LVs) (BZ#2072242) * Remove upstream-only devices from the qemu-kvm binary (BZ#2077928) * When doing a cpu-baseline between skylake and cascadelake, cascadelake is selected as baseline. (BZ#2084030) * Virt-v2v can't convert rhel8.6 guest from VMware on rhel8.6 (BZ#2093415) Enhancement(s): * Allow memory prealloc from multiple threads (BZ#2075569)

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