Topic: An update for the virt:av and virt-devel:av modules is now available for Red Hat Enterprise Linux Advanced Virtualization 8.4. 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: The Advanced Virtualization module provides the user-space component for running virtual machines that use KVM in environments managed by Red Hat products. Security Fix(es): * QEMU: virtio-net: heap use-after-free in virtio_net_receive_rcu (CVE-2021-3748) 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): * qemu-img convert --bitmaps fail if a bitmap is inconsistent (BZ#1993308) * fails to revert snapshot of a VM [balloon/page-poison] (BZ#2005425) * Operation not permitted in setting unpriv_sgio for KubeVirt (BZ#2012223)

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